A draftniks view:
Some of Manziel's on field evaluations are tainted by some of his off field shenanigans.
Manziel is a very good college player but he does have his flaws. Most notably is his propensity to run. This should be easy to correct. Manziel has one of the best OL in the country. Too many times while in the pocket with absolutely no pressure whatsoever Manziel will take off and run. It's like he has a clock in his head and regardless of the situation, when the clock ticks 3 seconds the alarm says run and Johnny almost always will. If Johnny can ever correct his propensity to run he will be an even better QB. Just my humble opinion.....