All this talk of A-players is somewhat sketchy too - I've seen A-players go to the wrong team and become C-players. I've also seen B-players become indispensable and stellar.

So sure, hire the best folks you can, but if you have a great team, you might find it easier to a) integration even not-so-great folks into that team and b) it's cheaper not to hire rockstar ninjas for all your hires.