We often hear that professional services firms sell expertise. There’s truth in that – clients are buying advice, judgement, skill and experience.
However, expertise has become expected – it’s what’s needed to play.
Every credible professional services firm can point to expertise. Every client-facing practitioner’s profile references years or decades of experience. Every piece of marketing collateral promotes specialist capability.
Expertise creates possibility
Expertise might get you shortlisted or even invited to present. It might satisfy procurement’s first filter, but in a market where every credible firm claims expertise, those claims alone are rarely what distinguishes the winner.
Ultimately, clients aren’t simply deciding whether you’re competent. They’re asking themselves, “Can I defend my decision to my CEO, board, partners or executives if challenged?”
Confidence reduces perceived risk
Professional services are purchased under uncertainty. Clients don’t know whether litigation will succeed, an acquisition will complete, the regulator will intervene, a transformation program will deliver its intended benefits, or an infrastructure project will meet its objectives.
Clients are buying confidence that their external advisors have navigated similar uncertainty before.
Confidence comes from evidence
Confidence isn’t built on claims of being leading, trusted or innovative. It’s earned through credible evidence that reduces uncertainty:
- Comparable matters
- Relevant industry experience
- Measurable outcomes
- Independent recognition
- Client recommendations, referrals and testimonials
- Thought leadership that demonstrates judgement, insight and foresight.
Recent research suggests that demonstrating experience is not always straightforward. In The State of Experience Data in Proposals 2026, a survey of 429 proposal, marketing and business development professionals, 64% identified relevant past experience as one of the two most important factors influencing wins. Yet 26% identified finding and compiling that experience as their single biggest proposal challenge.
More strikingly, approximately half reported that their firms had occasionally or regularly declined to bid because they could not readily demonstrate relevant experience. While this doesn’t establish that those opportunities were winnable, it raises an important question: how much potential business are firms foregoing because they cannot readily access evidence of their own capabilities?
AI changes the equation
Large language models can now produce competent capability statements in minutes. They can explain legislation, summarise cases and draft proposals.
What LLMs can’t do is manufacture genuine experience. They can describe it, organise it and help present the evidence, but they cannot make an unsubstantiated claim true. Recent cases involving lawyers citing AI-generated, hallucinated authorities are a timely reminder that confidence depends on authenticity, not just fluency.
AI also offers an opportunity to address this problem. It can help firms locate, extract and connect relevant experience buried in documents, matter records and other unstructured information. But any claims drawn from those sources still need to be checked for accuracy, currency, confidentiality and relevance.
There’s even a term for people who pass on AI-generated content without reading, understanding or verifying it: meat proxies. It’s a provocative expression, but it captures a genuine risk. When practitioners become conduits for AI-generated claims rather than exercising independent judgement, they undermine the very expertise and credibility they’re supposed to demonstrate.
Ironically, as AI makes expertise appear more abundant, credible evidence becomes even more valuable.
And as expertise becomes easier to describe, it becomes harder to differentiate.
Imagine two firms with comparable expertise. One describes its capabilities in broad terms. The other demonstrates experience helping organisations in your industry navigate similar challenges, supported by measurable outcomes and independent recognition. Which feels like the lower-risk choice?
What this means for firms
For professional services firms, this calls for a shift in marketing priorities:
- Instead of publishing more content, surface more evidence.
- Instead of describing capability, demonstrate it.
- Instead of making broad claims, provide more relevant proof.
- Instead of publishing to demonstrate activity, publish to reduce uncertainty.
- Instead of telling clients you’re the right choice, make it easier for them to reach that conclusion themselves.
Expertise will always be the price of admission. However, in a market where every credible firm claims expertise, the most successful firms will be those that make their expertise easiest to believe.
