I mostly agree with this (as we really do have the same opinion overall on the subject based on a lot of your previous posts), but I brought up Browning because of the absolute nature of your statement. I'm merely presenting that there are exceptions to the rule. It's a matter of what is your definition of a bad QB? When someone is undrafted like Kurt Warner (who completed 28% of his passes his junior year of college) or picked late like Brady, or last like Purdy, did they start as a bad QB? If they end up getting good coaching and play with an excellent line and receivers, allowing them to think more clearly and grow and become a better processor after some growing pains, would you say that's a bad QB becoming good or just latent goodness allowing to blossom? Have you seen TB12's first drive? Warner's and Purdy's 1st appearances? Talk about hot garbage. TB12 was a hair's width away from an INT and probably turning into Stidham, although we'll never know, thankfully.
Edit: I also disagree with the better weapons for Aidan. I'd always thought that Adams/Meyers/Renfrow was a terrrrible WR combination. Also, "better weapons" should also mean better compatible weapons, as sometimes you just need a QB and WR to get on the same wavelength to achieve something good.