None of those (well, QB Rating but that doesn't exist amongst the others on the list) would have any meaningful correlation to QB success. In fact, nothing at the combine that gets measured would matter.

But this has been chosen specifically b/c there's a particular prospect who is on the short side and it could be a reason he is not selected with the top overall pick (though it's guaranteed he will be one of the 1st 2 picks no matter what). It's a very silly reason to dislike an otherwise great prospect as heigh has never been linked to performance for guys who are good enough to be in the NFL. I'm not interested in trying to find a specific measured attribute that correlates highly with NFL success b/c it doesn't exist. There are certain intangible aspects that aren't currently measured, if there weren't then the NFL draft would be a waste of time in itself as everyone would just pick correctly the first time.