Joe I know you think you know but you don't understand, let me help you .The head coach doesn't have final say on personnel on most teams in the NFL. There's a few exceptions like Belichick and Pete Carroll but it also comes with it's ups and down. NE is the worst drafting WR team i've ever seen, and Sea fell a part in the trenches and may lose RW. Let's see how many SB's NE wins without TB. Most teams have GM's separate from coaches and coaches won't like all their moves, that's life not just in the NFL but in all professional sports. Cowboys use Will McClay as Director of Personnel and if he was bad he would be fired. As far as hiring coaches I've seen Dallas go both ways, I do like the idea of the HC to hire his own staff and I believe Payton would be granted that as others have.
A joint operation between coaches, scouts and GM is the best IMO, when it comes to personnel, we have that and we draft well for the most part. (Taco over TJ watt was a coaches decision)
Jerry Jones's interference is his public debacles, his radio show, his media mouth...that's his problem, that was his problem with Jimmy Johnson and that's his problem today.