> No pure managers: Every leader at Coinbase must also be a strong and active individual contributor. Managers should be like player-coaches, getting their hands dirty alongside their teams.

What's the theory on this? It seems to be common conclusion, but I don't understand why AI changes the situation here.

I understand that AI means you can do more with fewer people. Fewer people means less coordination overhead and fewer managers and fewer layers. What I don't get is why you want your managers to be doing IC work more so with AI than before. I don't see why anything changes about needing roughly 1 first line manager for every 6-8 people, or why it would be more beneficial now that the managers have production programming responsibilities.

Both before and after AI it's important that managers have real technical knowledge of the codebase. Having managers do actual production IC work in my experience has been a bad allocation of resources, though, and I don't see why AI changes that.

(a) Someone has to do the management tasks. Why do we think that isn't a full time job anymore?

(b) When managers do production IC work, in my experience it increases the load on ICs in review, because the manager one would _expect_ to not be _as_ expert as pure ICs on the codebase, and yet they are perceived as "senior". ICs then have overhead in having to manage that power imbalance in review. I have known a few extremely productive manager/ICs… but the effect on their teams was not super great. It made the manager into something of a micromanager and the actual ICs lacked autonomy.