If you pick up the book Boys will be Boys, you will read all the history about Walsh, Aikman, and how Jimmy was down on Aikman and he wanted Walsh, and also how Jimmy finally picked Emmitt, after the other guys he wanted were drafted by teams that picked before us, and how he thought Emmitt was too slow.
That book is really good, and I wish all Cowboys fans would read it, so one they can stop making up their own theories of what really happen, two, so they can find out how Jimmy could have derailed the 90s team before they even got started.
Jimmy was a good coach/motivator really is what he was, and a good designator, and talent evaluator.
What makes most great coaches, is the staff that is around them, as we have seen first hand, without that staff the dynasty is no longer, Jimmy without his staff in miami, did nothing, when he claimed that in 5yrs he would have miami in the superbowl.
Parcells without his staff, made it to a superbowl with new england but they lost, and without even more of his staff with the jets they could only make it to the conference championship game, and with us first round of the playoffs, and a sub 500 season and 2 seasons of just missing the playoffs.
Now we are watching the patriots go down, as belichek's staff is slowly being dismantled.