As much as I am on board with the McD/Beane team, this was a major screwup. Not sure whose decision it was(Pegula, McD, Overdorf, someone else), but it is almost impossible to defend.
It's not a question of, can they fill all the vacant spots in the college & pro scouting ranks. It is a question of, how many good scouts did they kick to the curb in this purge, and will all the newbies be better qualified than those they replaced.