I never heard of a coach that is tremendous and overrated at the same time.
I have a pet peeve about the whole underrated overrated thing... I mean wayne greatzy was horribly overrated the final 10 years of his career. he was still a great playmaker and usually finished near the top 10 in scoring but he wasn't crushing the league anymore once he reached 30 years of age. people still called him the greatest player in the world though.
in truth gretzky wasn't even a top 5 center in the league over his last 10 years which doesn't mean he sucked. he was still great but he was now very overrated.
overrated and underrated term doesn't mean good and bad player. it just means that a guys reputation is bigger or smaller than his actual performance.
Dionne phaneuf is called the most overrated player in the nhl and he might be, but that doesn't make him a bad player. he is a huge talent with the potential to be worth 7 mill a year and the ability to be played on the ice 23-25 mins a night by his coach.
my own opinion of babcock is that his players believe in him and listen when he speaks... that's about all you can really ask of a coach. I don't think he gets more or less out of his talent than most coaches would get. I mean its not like this guy coaches his team to cup contention every season.
paying him 2-3 times what a normal coach would cost is pretty crazy. at least it doesn't count against the cap