All true football purists, and those that understand the game and teach it well know that after the quarterback position, Left tackle and the rest of the O-Line are the next most important positions on the team.
You want some of the most talented players in the league along your offensive line. At the heart of all the offense is your line.
They are the beginning- and usually the end- of any success or failure that you are able to achieve. One would think that teams would be trying to get the most talented players to fill those positions.