The Steelers wore the throwbacks twice in 2012 (against the Redskins and Ravens), and once in 2013 and 2014 (against the Lions and Colts, respectively). They're 3-1 in those games, which is one more win than the team had when they first introduced the look in 1934.
That year, the Steelers were 2-10 under coach Luby DiMeolo. Warren Heller led the team in passing, completing 28 percent (!) of his throws for 511 yards with two touchdowns and 15 interceptions. Heller was also the leading rusher (528 yards on 132 carries) and receiver (six receptions for 96 yards).