Check out this:

[URL]http://www.theguardian.com/sport/interactive/2013/jan/30/nfl-salaries-team-position#pittsburgh-steelers,cincinnati-bengals[/URL]

what you will find pretty quickly is that the Steelers and Jets are at the bottom of the league in OL salary. The better offensive teams?...not surprising they are paying the premiums for OTs.