I hear people talk about how tall QB prospects are all the time, whether or not they have "prototypical size" or whatever, but I've been thinking, and really, how much does it matter? I don't think very much as long as the guy is good. I think it's a factor to consider, but I don't think a QB should be written off for being short just as I don't think he should be significantly upgraded in terms of projectability just because of his size. Lets go through some starting QBs:
Robert Griffin III
That's 12 starting QBs under 6'3'' right now in the NFL. More than 1/3 of the league. So, is height really THAT big of a deal when evaluating QB prospects?