lol... yeah... RB's back then were 5'9" and 140 lbs too...This line amused me, so I looked it up and found a site that says the average lineman in the 1920s was 6’0” and 211 pounds...about the size of Deone Bucannon.
its more about body type really... LT's are 6'6" and 295-315... OG/OC's should be around 6'4" and 325.... I just prefer more "square" interior linemen,.. guys with enough bulk to hold back todays huge DT's