FWIW, I heard an interview with Mahomes and in response to a question about his gunslinger reputation he basically said that's how you have to play to have a chance in those Big 12 shootouts and he understands the NFL is a different game.
The thing about Kelly is that he's had repeated incidents of knuckleheadedness, rather than a lapse or two in judgment. I get the idea of taking a flyer on him late based on talent, but you have to wonder if he hasn't shown by now that he is who he is and he's not going to turn it around.
I also heard an interview with former Eagles and Browns personnel guy Joe Banner who said that they've done studies of what traits in a QB most often lead to NFL success and the top three are accuracy, intelligence, and leadership. That's consistent with what
Keith pointed out O'Brien has said was important and I know I've heard of at least one similar study by a team where they found that accuracy, intelligence, and toughness were most important.