Marty and the GM hated each other. the GM was more the idiot.
The GM wanted the first and last say so finally Marty had enough
That sounds a lot like what happened between Jerry Jones and Jimmy Johnson.
Dallas had won Super Bowls and was still a good team..but the two just couldn't work together...so Johnson left.
Even though the Cowboys won one under Switzer, the team never got back to greatness.
However...I have to remind myself that when Dallas was winning all of those Super Bowls...there was no salary cap...
That salary cap has really hurt the Cowboys all of these years.