Two species that need the same thing rarely both survive sharing it.
The competitive exclusion principle holds that two species drawing on an identical resource cannot coexist indefinitely, one eventually wins the shared ground and the other is displaced or dies out. On the Galapagos, finch species avoided that fate by diverging, different beak sizes and shapes suited to different seeds, different ground, no longer drawing on the same resource at all.
A generalist consultancy trying to out-compete cheap synthesis on research, first-draft analysis, and information assembly is competing on ground it has already lost, the ground the first paper in this series describes being repriced to near zero. The firms that survive this transition without being absorbed or fading are, in a meaningful number of cases, the ones that stopped contesting that ground and moved to territory AI does not occupy: judgment under genuine ambiguity, trust built over years inside one account, access no model can request.
This is not retreat. It is the same move the finches made, and it is available to a service provider precisely because, unlike a species, a firm can choose its niche deliberately instead of waiting for extinction to select it.
A firm that cannot answer this in one sentence is probably still standing on ground it has already lost.