Let's let Justin Smith's words regarding Tomsula sink in here and add strength to the argument that Smith didn't retire because of the coaching staff:
http://www.csnbayarea.com/49ers/smith-tomsula-not-meat-head-d-line-coach
Smith said he watched as "the media had fun" with Tomsula during his introductory press conference.
"They kind of lit into him. I felt bad for Jimmy T," Smith said. "They tried to make him look like a meathead D-line coach. That's not the case. This guy is a cerebral guy. He knows the game inside and out -- offensively and defensively.
"Half the time we're talking defense in our defensive meeting rooms, we're talking about how the offense is trying to attack us. So he's got good knowledge of what the offense is trying to do -- special teams, all of it. We got a great coach and he's going to do fine and it's going to be fun to watch it.
"It's football. Players move on, coaches move on. You got to roll with the punches. I think they'll be fine. Like I said, I have all the faith in the world in Jimmy T."