DonM Since all Lion's teams have been so undisciplined for as long as I can remember I really can't say if Caldwell's teams were more or less disciplined. His team will love him and play hard for him though.
As for game management he's one of the worst. Bad at challenges, etc. I'll give you my best example, Lions are leading Green Bay buy 5 with a couple seconds on the clock. Green Bay has the ball on their own 45. They have Aaron Rodgers, what do you think the likely play is? Hail Mary pass, right? So you bring in 6'5" Calvin Johnson and station him at the goal line with a bunch of other guys, right? Caldwell has his defense setup for an F'n flea flicker play? He has two or three guys in limbo about 20 yards off the line of scrimmage who can just sit there and scratch their asses as Aaron Rodgers throws a Hail Mary for a touchdown to win the game! He thought GB would try a flea flicker type play when they have Aaron Freakin' Rodgers! That is the game manager you'll be getting.
He'll be a good coach for you until you get good and then you'll need to find the guy who takes you to the next level.