Yes I think you are probably right. Every now and then he cares, though. Pats dont' play then until Weeks 12/14 (home/away, respectively). That bodes well for New England. By then he will probably be in "I don't give a crap mode I'm only going to prepare for 5 hours each week."
But we always have to be careful, every now and then he puts in lots of time, for some reason he actually has some pride. And don't forget he left Denver because he hated McDaniels. There is bad blood there.
He steps up his game 2-4 games a season, and it is hard to predict which games. I have followed him a lot because I have a friend who is a big Bears fan, and another GB fan so I hear them talk a lot.
I'd be more worried if it were Kapernick, I have to admit.