I think that with the prevalence of the 3-4 on many capable teams that they should emphasize more on size with the middle linemen(G and C), provided that they are comptent linemen, of course.
Steve Young wanted one the Cowboys o-lines when Norv was there in some article he wrote on ESPN way back in 2002, and that line was made for Norv's Coryell(link:
ESPN.com: NFL - Young: Scheme can be QB's best friend).