Filed under: Iowa , Ohio State , USC , NCAA FB Coaching , General CFB Insanity Attention KMart shoppers: We have a blue light special in Columbus, where right now we're offering 22% off of national championship winning coaches. So says Forbes , which is out with a list it calls The Best (And Worst) College Football Coaches For The Buck (slideshow warning). According to their algorithm, Jim Tressel 's $2.6 million annual salary is under the market rate for coaches with similar achievements. The Buckeye boss should be making just under $3.2 million a year. That sounds like a lot of money, mostly because it is. Yet Forbes says that even Pete Carroll (2007 compensation estimated at $4.4 million) is underpaid. They say Southern Cal's coach should be making about a Chevy Cobalt more than $5 million a year, based on his two national titles. (No word on how the Stanford loss affected his overall value, alas.) So cheer up, Buckeye fans; you may have lost two straight BCS Title Games, but (a) you actually made it to two straight BCS Title Games, and (b) you didn't overpay for the privilege. Of course, if somebody's underpaid, somebody's overpaid too. Who's the most overpaid coach in college football, according to Forbes ? Hint: his name rhymes with "irk parents." Like you needed a hint anyway. Kirk Ferentz makes more than $3 million a year, while his team struggles to break .500, and his players accumulate so many off-the-field problems Fe ...