Before his sophomore season, T.J. Lang was moved to the offensive line, where he quickly won a starting job for the Eagles. He started 10 games at right tackle and two at left tackle in 2006, before moving to the left side exclusively in 2007. He finished his Eastern Michigan career having started 36 consecutive games on the offensive line. Lang earned second team All-MAC honors in 2008.
After the 2008 season, Lang was selected to participate in the 2009 Texas vs the Nation Game.