I come from an old school football mentality where lines are the key. The two teams I grew up following and were successful were the Redskins under Gibbs and the Hokies under Beamer. Both of their offensive philosophy was control the ball by dominating the line of scrimmage, wearing down the defense, getting the occasional over the top big play when they cheat up to stop the run and let your opponent beat themself.

For that style to work, the OLine has to be a strength.