Doesn't concern me at all.
Guy has only had one full season as a starter. And that was a lockout year, and he had a serious injury for the second half.
I personally need to see one more year, with better pass protection, better receiving talent and a better defense, before I make any judgment that he's elite, great, mediocre or bad.
From what I've seen in the first half of last season, I think he has the potential to be great.
No one has said he's the greatest or a monster, btw. Most people think he's a mediocre talent. Could be true, but one year isn't an adequate test.