I didn't say it was acceptable. In fact, I said he was a poor leader. What I disagree with is his "melting down." He's the ultimate competitor and isn't fazed by anything. All the naysayers are just going to put a bigger chip on his shoulder and make him even more motivated to prove himself on the field.
In response to the Ryan Leaf comparison, I couldn't care less what he does in the pros and didn't think that was the topic of conversation.
Christian Hackenberg has played one game and will be running circles around Manziel? Somebody hasn't been watching JFF play, who quite literally runs circles around the best defenses in the country on a weekly basis. I guess we'll see how those best defenses adjust with a year of film on him, though. Saban and Miles are outstanding defensive coaches and there is a basic strategy that can be employed to limit his greatest strength: improvisation.