This is exactly the problem I see today.

And it's not just a volume problem.

Mediocre devs previously couldn't complete a project by themselves and were forced to solicit help and receive feedback along the way.

When all managers care about is "shipping", development becomes a race to the bottom. Devs who used to collaborate are now competing. Whoever gets the slop into the codebase fastest, wins.

This is also very true, and while I consider it part of the authority to say no, this is a significant point.