I have to admit, taking a spin off an old John Cooper line, that some players do not pass the look test, when they get off the bus. However, the longer I am on this Earth, the more I learn not to judge a book by its cover.
If you catch a guy on an off day, and see that he isn't the fastest, nor is he a great shooter, and he doesn't jump out of the gym, I can see how doubt can creep in. That is why we trust the coaches, and why they get the big Bucks (pun intended)
The things that are harder to see when a guy has an off day, is his heart, how hard he plays, how he never gives up on a play. How he decides to forgo his senior year as the starting QB (and a lot of adoration from teenage girls, I'm sure he did alright anyway) to concentrate on improving his game, even after he has opted to play for one of the top programs in the country. You can't necessarily see how smart he plays, or his basketball IQ. You definitely cannot see, what he does on the practice floor, or the locker room, that make him and his teamates better.
With what I have seen so far from Craft, it is obvious why he was offerred by Tennecheat, and why tOSU was happy he changed his mind and decided to come play for the good guys. He may not be one of the most physically gifted to play PG for the Buckeyes, but it's possible, he'll go down as one of the best.