The offense has sputtered all year, Jim needs to loosen his hold on the idea of a 1990's style offense working and open it up a bit. The defense simply can not carry the team all year long.
The offense at times looked great (Penn State, for example).
There have been games where the offense sputtered, and the defense was great (MSU).
There have been games where the offense scored a lot of points, but the defense let through a fair number of points (SMU, Maryland) or outright collapsed (The Game).
The Peach Bowl was the only time both offense and defense had major problems.
The talent of the players is very high, so that part is looking very good. There needs to be a lot of work on plays and strategy this off season for both offense and defense.