Large law firms have spent the past two years acquiring AI tools. According to recent reporting, they are now pivoting toward something more consequential: building AI systems around proprietary institutional knowledge - the accumulated case strategies, partner reasoning patterns, and client-specific precedents that exist nowhere else. The commodity layer of legal AI (generic document review, contract summarization) turns out to be less interesting than the organizational layer beneath it. What firms are actually trying to encode is what only they know.
This is a significant strategic move, and it deserves more rigorous analysis than it typically receives. Most coverage frames this as a competitive advantage story. That framing is not wrong, but it is incomplete. What law firms are actually confronting is a much older problem in organizational theory: the difference between explicit and tacit knowledge, and the structural difficulty of converting the latter into anything a system can act on.
The Tacit Knowledge Problem Is Not Solved by Retrieval
The institutional knowledge that law firms describe as their most valuable asset is not, in most cases, stored anywhere. It lives in how senior partners frame problems before they research them, in which arguments they choose not to make, and in the relational context surrounding every case decision. Polanyi's original insight - that we know more than we can tell - remains the central obstacle here. When firms say they are "building AI around experience," they are describing an aspiration, not a completed technical act. The systems being built are retrieval systems layered over document archives. That is not the same thing as encoding expertise.
This matters for organizational theory because it surfaces a governance question that firms are not yet asking clearly: whose knowledge gets encoded, and at what moment in its development? If the system is trained on past case documents, it inherits the analytical frames of partners who produced those documents. That is not neutral. It is a structural choice about which organizational cognition gets institutionalized and which gets discarded.
The Awareness-Capability Gap, Inverted
My dissertation research on Algorithmic Literacy Coordination focuses on a specific asymmetry: workers can become aware of how algorithms shape their environment without becoming better at responding to those algorithms (Kellogg, Valentine, & Christin, 2020). The law firm case presents an interesting inversion of this dynamic. Here, the organization is not trying to understand an external algorithm - it is trying to become the algorithm's training environment. The firm is the expert; the system is the learner. But the gap persists in a different form.
The capability that senior partners possess is adaptive expertise in the sense Hatano and Inagaki (1986) describe: it is not procedural fluency but principled flexibility, the ability to recognize when a known approach does not apply and construct a novel response. Document-based AI systems are structurally oriented toward routine expertise. They retrieve and recombine patterns from prior instances. The irony is that the knowledge firms most want to preserve - the judgment that made their best cases exceptional - is precisely the knowledge least amenable to this kind of encoding.
What the AI Labs Buying Slack Data Actually Reveal
A parallel development reported this week is worth noting alongside the law firm story. AI labs are reportedly offering companies significant payments for internal data, including employee emails and Slack messages. Taken together, these two stories reveal something about where the frontier of AI development has moved. The generic training corpus is increasingly treated as insufficient. The valuable signal is now organizational. It is relational, contextual, and embedded in the communication layer of actual work.
This convergence has direct implications for how we think about organizational boundaries. Rahman (2021) described the "invisible cage" of algorithmic control in platform labor - the way workers are governed by systems they cannot see or contest. The current dynamic runs the other direction: organizations are now the raw material, not just the operators. Their internal communication patterns, reasoning trails, and institutional memory are becoming inputs to systems that will be sold back to them or to their competitors.
The Governance Question That Is Not Being Asked
What neither law firms nor AI labs are engaging directly is the question of cognitive infrastructure ownership. When a firm's institutional knowledge is encoded into a system, that system's outputs become authoritative in ways that the original human reasoning never was. A senior partner's judgment could be questioned, revised, and updated through conversation. A system trained on that judgment presents its outputs as retrieval, not reasoning. The organizational dynamics that allowed expertise to be contested and refined get bypassed.
This is not an argument against what law firms are building. It is an argument for being precise about what they are actually doing. Encoding experience is not the same as preserving expertise. The distinction has consequences for how firms should govern these systems, what audit mechanisms they need, and how they should think about the relationship between the system's outputs and the ongoing development of human judgment within the firm. The technology is moving faster than the governance frameworks, which is a predictable condition, but not an acceptable permanent one.
References
Hatano, G., & Inagaki, K. (1986). Two courses of expertise. In H. Stevenson, H. Azuma, & K. Hakuta (Eds.), *Child development and education in Japan* (pp. 262-272). Freeman.
Kellogg, K. C., Valentine, M. A., & Christin, A. (2020). Algorithms at work: The new contested terrain of control. *Academy of Management Annals, 14*(1), 366-410.
Rahman, K. S. (2021). The invisible cage: Workers' reactivity to opaque algorithmic evaluations. *Administrative Science Quarterly, 66*(4), 945-988.
Roger Hunt