Or maybe after being around and coaching the Tampa 2 scheme and the 3-4 scheme, he thinks the 3-4 scheme is better.......?
I'll post a better argument for you since my last response I was currently on the road getting last minute items for the hurricane down here, I'm a matter of hours of losing power.
Cowher ran the 3-4 as D-Coordinator for the Chiefs for a handful of seasons. The 3-4 being Cowher's speciality...so it made perfect sense when he became HC from the 90's to the mid 2000s the 3-4 was the staple. Cowher and Lebeau were a perfect marriage there, most likely why Lebeau had a 2nd stint here too.
As you may know I also like TB, so here is what I know in this regard:Todd Bowles as D coordinator also ran the 3-4 and is also his specialty. As head coach this year his Defense didn't change. Makes sense right? He sticks to his philosophy.
I don't care if Tomlin "likes" the 3-4 he never coached it prior to coming here. He obviously doesn't know how to run it either (i.e him.calling the plays in the Browns playoff game).
It doesn't make sense to hire a defensive minded head coach who doesn't specialize in the 3-4 if we are hell bent staying that way. Again I expected him to change that when Lebeau retired and don't understand why he did not.