Smith, Darnold, and Mayfield and now possibly the two Joneses show that many times when a top drafted QB fails, it isn't always on them and it is because they went to bad teams who didn't develop them correctly and set them up for failure.
Queue the Tom Brady video explaining that offensive coordinators should be ranked just like QBs are, and how the OC can make or break a young QB.
Sure, only Mayfield is remotely living up to his draft position, but the others are showing they could have been good enough to win if they were developed correctly and put in position to succeed. Bad teams ruin young QBs.
IMO draft position means very little with Brady being the obvious example. Mac was drafted 15. So much of that isn't about Mac. So much about that is what the various teams perceive their need at that point in time and how they perceive the value of other talented players both at QB or at other positions.
But in today's NFL, I wouldn't want to draft a player like Smith or Darnold and have them perform like they are now. With the contracts for QBs, you need them to be either be a top 10 QB or a bust. Too many average to slightly above average QBs are getting ridiculous deals. Hell, even some below average QBs are too.
It reminds me of the engineering maxim of "fail fast". Shoot for the moon, but if it doesn't work out, move on to a different solution ASAP.
The problem with this is ownership, marketing and the fan base invest a lot in a new player, especially one as visible as a high draft pick QB.
So, regardless of the collaboration nonsense etc what if Bill really thought Jones had peaked after Year 1 and he wanted to trade him for as much draft capital as he could get in the off season, would ownership, marketing and the fan base let him get away with that?
This thread has a lot of evidence of how fan bases pine for former players. The collective 'we' have a hard time moving on, it seems to me.
So I think the answer is no that Bill could not 'fail fast' with Mac, and the implication is that 'fail fast' is in general hard to do in the NFL, and indeed this leads to a lot of mediocre QBs getting big second contracts. Tua Tongavailoa says hi!
GMs and owners feel it's safer/better to overpay mediocre talent than to let that talent walk and some other team be seen as getting the gains of your investments. They don't want to deal with butthurt fan bases. In turn that's the down side of us being so fascinated with the draft. We get butthurt when we see Mac doing well instead of accepting he just didn't work here and it was time for both sides to move on.