I disagree. The O-Linemen are getting bigger and bigger. Teams have always tried to use faster (and smaller) pass rushers. More teams are going to the 3-4 because with the college spread offense, they can only defend against it with smaller, but faster personnel...opting for 3-3-5 and other type of nickel packages. In the NFL the spread just doesn't work as well. So if you want to go with smaller and faster defenses, the opposing team can counter it by being far more physical. I have yet to see anything show me that O-Lines are going to get smaller and more athletic. I don't think you'll see big stiffs out there, but I think sub-300 lb linemen, even at center...are a thing of the past.
I agree with you. Fans seem to think that big linemen has to be slow. This is not always the case. The Cowboy lines of the 90`s were big and athletic. The current line is big , slow and ,at times, dumb . The key to having a big effective line is proper scouting and a willingness to use draft picks to obtain these big athletic linemen. The Cowboy`s have failed on the scouting and drafting these last few years. This line has been on a decline for at least 2 years and it it going to take a big investment in draft picks or trades to fix it. At the present, the line can not enforce their will on any decent defense. A good big man will beat a good small man on the line every time. As much as I like the fact that Dez is a Cowboy, I wouldn`t have been heart-broken if Mike Iupati had a star on his helment.