I don't question his effort... he's different than Rudy, but he gave us heart and guts last year in the playoffs.
I think he looks a lot lighter and that will help with the other stuff. I'm hopeful he will stay healthy and I don't know that there is a $20M/year offer out there for him even if he does. Maybe he comes back at a similar number next year... I'll worry about that later and just enjoy what he is doing.
He did play well in the playoffs. And he does look to finally be in real shape which should help. And he has never caused any kind of distraction; he's just a chill dude who is now a family man. Maybe it's just taken him a while to blossom into a mature pro a la Joe Jesus. Speaking of which, I wonder who/what has been behind Derrick's new level of fitness.