T J Watt has been the most valuable defensive player since he entered the league

 The Steelers have won 60 games and lost 24 games with 2 ties if TJ Watt gets a sack or interception

When he does not get a sack, interception or does not play the Steelers record is 26 wins and 30 losses.

That is a winning percentage of .703 vs. .464