Does Trestman’s firing prove John Harbaugh learned his lesson from the Cam Cameron experience?

To start off, if you were to tell me before the season that the now former Baltimore Ravens offensive coordinator Marc Trestman would be fired before defensive coordinator Dean Pees, I would've thought you were either nuts or Dean Pees's biggest fan. But that was the case Monday, as John Harbaugh decided to make a change on the offensive side of the football after just five games of the 2016 season. Harbaugh fired Marc Trestman and replaced him with Marty Mornhinweg, who was the teams quarterbacks coach before the move was made.

Mornhinweg is now the team's fifth offensive coordinator since 2012, and Trestman the second that was fired by Harbaugh. We all know the first one that was fired and…