Of course having a quality head coach matters, but you are overselling our struggles at producing QBs, versus how other teams produce QBs.
Yeah, Brandon Weeden goes out and wins one whole game in Houston after going 0-3 here, and then vanishes from the league and is never heard from again. It's not like there is some laundry list of QBs that we've mismanaged here that go on to have stellar careers or even highly accomplished backup careers elsewhere. The guy was straight trash and it's evidenced by the fact that no one else wanted him and he was out of the league the very year after sucking the place up here in Dallas. Not exactly a shock that we went 0-3 with him.
Guys like Weeden, Cassell, Sanchez, and Moore, for all of them, their Dallas seasons were their last stops in the league, with the exception of Cassell, who has done nothing of note in Tennessee either.
So I must be missing this amazing amount of evidence that we are squandering QB talent. It looks to me like our GM is only getting shitty QBs at the end of their NFL usefulness.