He doesn't suck, he just isn't living up to expectations. Plus, I'd argue that his best attribute is scrambling.
THAT'S NOT A GOOD THING. IT'S NOT TRUE OF ELITE QBS.
Are they very effective on called QB runs? Great.
Are they adept at making the right decision and being able to get good yardage on RPOs? Fantastic.
Is scrambling well a useful asset? Sure.
But if it's the thing you do best....you're not an elite QB. Elite athlete? Fair. But not an elite QB, sorry.