[zeraholladay]

Yes. I've heard of multiple studies concluding employers hire those candidates that are the most "like" them.

I read a book called "Money Ball" last year. One of the lessons I took away is that a successful baseball team can be created from undervalued stats (i.e. irrational beliefs in value cause inefficiencies). This trend you described forms teams of walkers xor home-runners, for example. I don't know why I believe this (I'm subject to my own criticism), but I strongly believe teams with multiple talents outperform teams with one talent (generalists vs niche).