I played in high school at a power house rugby school. The only guy on the team that played football was only used on dead ball plays to run threw waves of guys but besides that he wasn't that great. Well Unless he got free running after a over sized line where our line out numbered theirs and it was him and a 150 pound guy. then he just trucked him. He got a scholly to West point but hated the planned out life style. But honestly big guys play power positions and arent there for speed and the speedy guys arent built for football. So no. At Ole Miss where they didnt have size they needed big uglies. UT doesnt need walk ons to make us a power house team.