Playing with a chip on your shoulder as a QB can win a lot of games, but can lose just as many by trying to force it.
Steve Young never struck as me Max Hall passionate. Nor did Wilson, Beck, Detmer, Boscoe, Nielsen, Wilson or other second-tier BYU QBs. Maybe only McMahon had that kind of anger / competitive fire.
So I think Jaren is doing great. Far better than a "game manager." And I wouldn't question his desire to win. Dude brings it every game.