They don't. Obviously they need dudes that are strong players, with enough flight experience.I’ve always wondered why we need WTIs and NSIs to do essentially daytime FAM/CAL/INST when those talents would be far better served at the FRSs and VMX.
The reason it happens is that they are given the first bite of the apple from among the mover population (assuming they submitted an app). HMX takes who they want off the board, prior to resident PME boards (CCLEB/CPIB)..if that's what they're still called. There's no manpower process that really manages the distribution of those quals (at least when I was in). For example, these succession of boards could in theory pluck a community dry, leaving VMX and FRS's a little threadbare.
Which kind of sounds like what you were saying in previous posts about the current situation.