Uncertainty principle

Injuries to key players, muddled QB picture plague USC this spring

Updated: March 18, 2013, 3:42 PM ET
By Steve Bisheff | WeAreSC
The biggest question of the spring has been unofficially tabled until the fall, and in so many ways that seems to symbolize the current state of USC football.

It is all one big cloud of uncertainty hovering over Lane Kiffin and the Trojans.