He has great arm strength, but other QBs with great arm strength have failed. He has standout running ability, but other running QBs have failed.
There are reasons he was taken in the first round, and most of those reasons have to do with the potential he showed. It doesn't mean he will ever become an NFL QB, but it is worth exploring IMO.
I know you can't stand him based on the nickname you have given him, so I don't expect you to agree with that. If Dallas had not traded for him, though, another team would have because of that potential.