To clarify, the difference you aren't seeing between the groups is the incompetent managers define "sit next to" as "sit next to at the nudie bar" or gaming table or harry potter movie premier or frat house or pretty much any place other than work. AKA young inexperienced white frat boys only need apply.

In comparison, competent managers define the same "sit next to" as "sit next to during an emergency bug fix" or while hashing out a new feature idea or optimizing a slow task or automating a process or just gossiping about a new technology. These are the kind of managers who "dare" to hire non-white people or women or older than 25 yrs old etc. Usually their company is much more successful for obvious reasons.