he's actually very athletic, would have been a pro tennis player if he wanted. top ranked as a teenager. he has done some bone head plays, especailly under pressure, but it's impossible to find a qb that hasn't. he is a little immature so he has room to improve and make smarter decisions. the mechanics are flawless and so if he can make smarter decisions he can be unstoppable. keep in mind he's still only 20 yrs old. also his team is absolutely terrible. he has had zero NFL receivers to throw to and maybe no other NFL prospects at all on that offense. by contrast Darnold goes to USC where pretty much everyone gets drafted.
i'll see if i can find a film breakdown of him. i wish i had time to do one of my own but i'm not a youtube personality