He is not a great coach, he is a solid coach. Ultra conservative and that wins. The only time that isnt effective is when your playing against a team with equal to slightly better talent. He will never out scheme somebody, so when they play these types of teams (florida, USC, LSU etc. ) they will probably get beat.
JT grinds the clock, boring football for sure, but when you have superior talent then the other team that prevents you from being upset. The is why his record is so strong.
They will probably run the table, I am not sold on PSU, the Wisconsin game is the one if they lose a B-10 game this year will be the game. Night game in Madison will be tough, those knucklehead students there are insane.