The problem is that the same faulty architects are responsible for building the roster.
As much as the overall roster talent has approved, especially since McClay had more say, the Jones have been awful at finding QBs. The three good ones they have had were all luck.
Aikman - purchased the team with the #1 overall pick and Aikman was the obvious #1 overall choice.
Romo - UDFA who would have been cut in 2004 had Quincy Carter not been released for a failed drug test.
Prescott (which half of you hate anyway) - Was a 4th round pick. The Cowboys tried and failed to get Paxton Lynch and Connor Cook in this draft. Prescott only got to play after injuries to Romo and Kellen Moore, as well as Nick Foles choosing to be a back-up in Kansas City over taking the starting job in Dallas.
So, the guys picking the next QB are the same guys who CHOSE the likes of Quincy Carter, Chad Hutchinson, Drew Henson, and tried (and failed) to spend draft capital on Paxton Lynch and Connor Cook.