Bernie Miklasz and I had much to discuss, including Jeff Fisher's hiring, during our weekly conversation Tuesday.
That audio is here.
One thing Bernie alluded to later in his program was the fact that Fisher's teams in Tennessee were known for playing through the whistle. Bernie was looking for a way to quantify that through penalty types. I've followed those trends for years and know Fisher's teams committed more personal fouls, specifically for roughing the passer, than most other teams in the league.
The chart shows the Titans with the most combined penalties for unnecessary roughness, roughing the passer, personal fouls and unsportsmanlike conduct from 2001-2010. Those are the years I could access readily via ESPN Sports & Information. Fisher was the head coach during those years. Seattle had the fewest; the Seahawks were among the least penalized teams overall under Mike Holmgren.