Cook was way more accomplished than JP Losman in college. I'm not basing my opinion on the pre-season, but he has looked pretty good, just as I expected him to.
We shall see if he can be a leader, but to just declare "guy is not a leader" so assuredly from where we sit, is foolishness. He has had plenty of success, "leader" or not, and I expect that to continue. But keep the opinions to the contrary coming, it will give me at least a fraction of happiness when he turns out to be a star, to counter the frustration of the Bills not going after him in the draft.