Zach Mettenberger’s arrival in Pittsburgh was a surprise to many, and a pleasant one to the majority. While his signing meant Bruce Gradkowski‘s placement on the IR, it also meant that the Steelers had a quarterback with starting experience to turn to if Roethlisberger does go down, and Landry Jones can’t muster up the performance Pittsburgh needs.
Right now, it’s very likely that Mettenberger will be the No. 3 quarterback on the depth chart, assuming he can win out the job against other quarterbacks on the roster like Dustin Vaughan and Byrn Renner. Whichever of the three prove the most worthy will take the job that Gradkowski would’ve likely filled if he hadn’t been injured.