How does that saying go again.... 'A camel is a horse designed by a committee!'
His team, his vision on how he wants to play, his responsibility to implement that and get results, his head on the block if those results don't materialise so surely it should be HIS decision who he brings in!
Scouts and analysts should be taking direction from the manager and that's it, they should NOT be in a position where they have an equal say or worse still be in a position to potentially overrule him (as a group) on who does and doesn't gets signed!