Where Experts Become Expert Witnesses: Inside Round Table Group’s New Expert Witness Club

An expert witness can hold a doctorate and 30 years of field experience, and still lose a billion-dollar case by struggling under a single line of cross-examination.

That uncomfortable truth sits at the heart of modern litigation. There is a meaningful difference between being a great expert and being a great expert witness, and most experts have had no structured way to learn the second craft without putting themselves — and their clients — in harm’s way. Law schools dedicate remarkably little time to teaching attorneys how to work with experts, either. The consequences are serious: major cases lost on preventable grounds, credible experts sidelined after a single rough deposition, and justice quietly reshaped by a skill gap no one has been able to close.

That is precisely the gap Round Table Group’s new Expert Witness Club is designed to fill — and at the center of the effort is Emma Oyomba, the Club’s manager, whose background in communications and strategy has positioned her to lead an initiative grounded in a deceptively simple idea: expertise alone is not enough. It must be clearly understood and effectively delivered.

Emma Oyomba
Emma Oyomba

The expert witness industry is absolutely massive. But there’s no true home or central place that is focused on developing experts into great expert witnesses.

From Knowledge to Performance

For decades, Round Table Group has occupied a distinctive place in the legal world, helping attorneys find, vet and engage expert witnesses whose knowledge can shape the direction of a case. It built its name by bringing rigor and structure to a process that once depended too heavily on personal networks, luck and hurried guesswork. In doing so, the company helped create an industry.

Now, as the demands on expert witnesses continue to evolve, Round Table Group is expanding that mission in a new direction.

Its Expert Witness Club, a new membership-based community and education platform, is designed to help experts do more than simply possess the right credentials. It is meant to help them become more effective witnesses: clearer communicators, stronger collaborators and more credible presences in litigation.

The expert witness industry is enormous. The U.S. expert witness consulting sector alone is approaching $800 million in annual revenue and has grown at a compound rate above five percent for years, and experts appear in some form in roughly eight out of ten U.S. trials. Attorneys routinely depend on professionals—physicians, engineers, economists, and scientists—to interpret complex information and support their arguments.

And yet, as vast as the industry is and despite the importance of their role, there is almost no organization devoted to helping experts become excellent expert witnesses.

“The expert witness industry is absolutely massive,” Oyomba says. “But there’s no true home or central place that is focused on developing experts into great expert witnesses.”

The challenge is compounded by a well-known feature of modern litigation: roughly ninety-five percent of civil cases settle before trial. That is excellent news for cost and efficiency, but it means experts rarely get the courtroom reps that would sharpen them. Firms end up with excellent experts working on their cases who are not yet excellent expert witnesses — and who may not discover the difference until the stakes are highest.

Most experts enter the legal world through opportunity rather than preparation. A colleague refers them. A firm reaches out. A case arises that calls for their specific expertise. From there, they begin learning how to function within the legal system—often without structured guidance, and almost always in isolation.

The Expert Witness Club is designed to change that. 

Why Experts Need a Peer Network

Even experts who navigate the learning curve successfully tend to do it alone.

“I think expert witness work can be very isolating,” Oyomba says. “There’s not really a peer community.”

The Club is built to break that silo. It is not a directory, and it is much more than a traditional networking group. It is an active learning community where members can continuously refine their approach to expert work at their own pace and, just as importantly, alongside other people who do the same work.

Its foundation rests on three interconnected elements: attorney insight, expert experience, and practical application.

Members participate in live programming led by seasoned attorneys and experienced expert witnesses, focusing on how expert testimony is evaluated in real-world litigation. These sessions are designed to provide clarity around expectations, highlighting both strengths and common pitfalls.

Members also gain access to a curated growing resource library featuring recorded sessions, articles, and shared insights. Content is organized by topic and evolves over time, allowing experts to revisit material and build on prior learning.

Equally important is the emphasis on peer interaction.

The Club creates opportunities for members to engage directly with one another—sharing perspectives, discussing challenges, and learning across disciplines. For many experts, this type of peer connection has historically been difficult to find.

By creating space for dialogue as well as instruction, the Club offers something more dynamic than traditional professional development. This format reinforces a central premise: meaningful improvement often comes from ongoing exposure to diverse perspectives, shared insights and experience rather than one-directional instruction.

What Attorneys Are Really Looking For

A central focus of the Club is helping experts understand how they are evaluated from the attorney’s perspective — and then giving them the tools to meet that bar across every phase of an engagement.

“I think attorneys are evaluating now more than ever how clearly you can communicate and how you can translate your expertise,” Oyomba says. “They want to see credibility beyond the CV.”

That expectation reflects a shift within the legal profession. While credentials remain essential, they are no longer the sole determining factor. Attorneys are looking for experts who can connect their knowledge directly to the facts of a case, explain complex ideas clearly, and maintain composure under scrutiny. “The bar is rising—not just for expertise, but for execution,” Oyomba adds.

Meeting that bar requires mastering a much wider set of skills than most experts realize when they first enter the field. The Club’s programming is built around that full picture. Members work on how to position themselves at the front end of an engagement — refining professional summaries, structuring a CV so relevant experience is visible within seconds, and presenting information so it lands with a non-expert audience. Even small adjustments can determine whether an expert gets the interview at all.

“It sounds simple,” Oyomba says, “but the alignment alone can completely change whether somebody gets interviewed or not.”

But getting hired is only the beginning. The Club also focuses on the craft of the work itself: writing expert reports that withstand scrutiny, preparing for and surviving deposition, and holding up under the rhythms and traps of cross-examination. These are the moments where cases are won and lost, and they require skills that are rarely taught anywhere else.

Equally important — and equally overlooked — is the business side of expert witness work. Members develop practical fluency in project management, contracting, scoping engagements, and setting rates. For experts who run their practice as a “third vocation” alongside academia or industry, these are often the skills that separate a sustainable practice from an unsustainable one.

Underpinning all of it is something harder to teach but just as essential: a working understanding of how litigation actually unfolds, and where the expert witness fits within it. Most experts come into the legal system with only a partial view of the process — what attorneys are trying to accomplish at each stage, how strategy shifts between discovery and trial, and why a brilliant report can still be undermined by a poorly handled deposition. The Club’s faculty of seasoned litigators help members build that broader perspective so they can operate as genuine partners to the legal team rather than narrow technical contributors.

Taken together, the Club’s programming addresses the full arc of expert witness work — from first impression through final testimony, and from substantive analysis through the business of running a practice.

What the Club Means for Attorneys

The Club is designed for experts, but attorneys have an equally direct stake in what it produces.

A seasoned litigator knows the uncomfortable moment well: the expert on their case is brilliant on paper, excellent on the substance, and visibly uneasy the moment opposing counsel reframes a question. The case does not turn on what the expert knows. It turns on how the expert holds up.

Experts who engage with the Club arrive at deposition or trial already familiar with the rules of engagement, the rhythms of cross-examination, and the specific expectations of today’s litigators. For attorneys, that translates into fewer surprises, stronger testimony, and experts who are ready to perform at the level their expertise deserves.

Oyomba is also exploring deeper partnerships with elite law firm associate training programs, including mock trials and deposition exercises. Both parties benefit: experts get practice in realistic settings, and associate attorneys get experience questioning — and learning from — real experts rather than colleagues or actors playing a role.

“It’s a great way for everybody to experience what it will actually be like,” she says.

An Evolution of Round Table Group’s Mission

For more than 30 years, Round Table Group has helped define how attorneys identify and vet expert witnesses across industries. Co-Founder Russ Rosenzweig has long described that work as a form of connection.

“Attorneys needed a better way,” he said. “And scholars needed someone to bridge the gap. We became that bridge.”

The Expert Witness Club extends that philosophy by focusing on development rather than placement. Instead of entering the process at the point of selection, it supports experts earlier—helping them refine the skills that make them effective in the first place.

That emphasis aligns with Rosenzweig’s broader view of the expert witness role. “We believed—and still believe—that the expert witness relationship is sacred,” he said. “It’s not transactional. It’s a partnership in the pursuit of truth.”

Under Oyomba’s leadership, that philosophy is translated into practical, accessible programming that prepares experts to contribute more effectively.

Attorneys needed a better way. And scholars needed someone to bridge the gap. We became that bridge.”

Looking Ahead

Although still in its early stages, the Expert Witness Club will continue to evolve. Oyomba is already mapping what comes next: shorter form educational content, podcasts, and deeper integrations with law firms’ mock trial and associate training programs. The Expert Witness Club is actively welcoming new members and faculty. Experts are invited to become members. Attorneys who have a passion for teaching — for helping experts understand reports, depositions, and testimony at a higher level — are invited to serve as faculty. Law firms interested in integrating the Club into their associate training or mock trial programs are invited to reach out directly.

For experts, the Club offers structure in an area that has traditionally lacked it. For attorneys, it means working with experts who are not only knowledgeable, but prepared. And for Round Table Group, it is the next chapter of a mission it has been writing for more than a quarter century: connecting law and scholarship with the care the partnership deserves.

For more information, visit
https://www.expertwitnessclub.com or email Oyomba at [email protected]