Markus Wheaton on track to start for Steelers

In recent years, the Steelers have found a couple of talented receivers via round three of the draft.  They now need another one to step up. With 2009 third-rounder Mike Wallace and 2010 third-rounder Emmanuel Sanders now gone via free agency, 2013 third-rounder Markus Wheaton is in line to start, predicts Ed Bouchette of the…