So let me get this right.
Jerry drafts good players based solely on who the head coach is, but other GMs must be out there making their selections entirely on their own without input from coaches and scouts, so Jerry gets no credit....okay.
Let's not forget that most GMs, including Jerry Jones, are responsible for hiring the head coach and the guys who run the scouting departments, and it's up to the GM how much he listens to and values the input he receives before making decisions on the draft.
Like any GM, Jerry deserves a lot of credit for drafting good players, hiring good people, and building a great organization as it operated in the 90's and as it is operating today. He also deserves the blame for that long stretch of 5-11 and 8-8.
But Jerry Jones is no fool; he learns; he adapts and changes; he wants to win. There isn't an owner in the NFL I'd swap for Jerry, and right now, I'd have to really study to determine if there's a GM I'd swap him for. Give all the credit you want to him learning from past coaches or past failures; give all the credit you want to Garrett, McClay, Stephen Jones, or the scouts, Jerry is ultimately responsible for all of them being here, for his own learning, and even for checking his ego and listening or promoting others to power.
Jerry Jones deserves credit.