> The senior that before could lead a team of 6 is now leading a team of agents, and reviewing their code just as before.

I don't see this in practice. Senior engineers can prompt Claude just as fast as junior engineers can. Claude can debug broken code at roughly the same speed regardless of who's pressing Enter.

In fact, I've basically stopped using agents for most of my work. It's far more valuable for me to help the junior engineers develop a better sense of what's good and right, than it is for me to sit and review Claude commits all day.