The USC Trojans are entering the 2011 football season with a plethora of questions to answer.
The Trojans are coming off their worst season in the last eight years and returning only 13 total starters.
On top of that, USC's appeal of the NCAA sanctions was denied, making the Trojans ineligible for postseason play—bowl games and PAC-12 Championship Game—for the second year in a row.
Now, Lane Kiffin is being investigated for alleged recruiting violations during his time at Tennessee.
The trouble with the NCAA isn't the only uncertainty heading into next season for the Trojans, though. USC has big questions they need to answer on both sides of the ball.
Here are the 10 biggest questions the Trojans must answer heading into the 2011 football season.