And what makes you think they are bigger, faster, stronger? Other than Paris at LFL, who showed obvious change from when he enrolled.
The reason people (myself included) are so cautious in their expectations is 1.) the line showed little to no improvement as the season progressed. Arguably, they got worse, but that could have just been stronger competition. 2.) they showed no to little improvement in the bowl game (without Dieffenbach), 3.) they showed no to little improvement in the B/W game (yes, our D is talented again--we hope--but so are some of the teams we play), 4.) no indication from the coaches or reporters that the line has shown major improvement in spring.
Now maybe all the work in the weight room, and a year in the system, and the addition of depth and some competition at positions will help. Normally it would. But 1.) we have no evidence yet that it has, leading some to question if the players we have just don't have it, and 2.) we were SO BAD last year that a tremendous improvement could still result in a below average to average line.
I hope they are better. I feel bad for the guys, I know they're taking heat and were put in a position that was not their fault. But as much as I want to wear my blue and white glasses, I don't want to set myself up for disappointment this fall if they don't perform, when I have virtually nothing to grasp onto other than "they couldn't be worse."