New position for Orson Charles?

Given the Cincinnati Bengals' situation at tight end -- they drafted Tyler Eifert in the first round and signed Alex Smith in free agency -- it appeared that 2012 fourth-rounder Orson Charles faced a tough battle to make much of an impact at the position (Jermaine Gresham is the starter). But, it appears that he's doing work at another position this offseason in an attempt to make himself more valuable to the club in general.