Inefficient allocation of work aside (where you end up with people doing nothing, despite I suspect a substantial amount of work in the backlog), I think the mi

Inefficient allocation of work aside (where you end up with people doing nothing, despite I suspect a substantial amount of work in the backlog), I think the mindset of "just reduce devs so there's not so much context switching/they can own more" is short-sighted from a business perspective. Even in projects that could objectively be owned by 1-2 people but are allocated to a 5-10 person team instead, I've encountered cases where velocity gets absolutely obliterated by a sub-domain "owner" dev being on vacation. Now imagine this is not a fairly small sub-domain but half the project, and instead of a vacation your one-of-two dev gets hit by a bus.