Spring preview: Offensive line 

March, 1, 2012
3/01/12
4:18
PM ET
TUSCALOOSA, Ala. -- There was a reason AJ McCarron developed into one of the best quarterbacks in his rookie season under center, and it wasn’t because he took his vitamins.

There was a reason Trent Richardson made it all the way to the Heisman Trophy ceremony, and it wasn’t because of the shoes.

There was a reason Alabama converted on nearly half of its third down plays, and it wasn’t because the Tide had a high-flying offense.
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With spring football upon us, Chris Low looks at which college football players have the most to prove in 2015.
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