It wasn't so long ago that Trojan fans were up in arms over the unexpected transfer of running back Amir Carlisle to their rival, Notre Dame.
For reasons that are still cloaked in mystery, Carlisle sprang the news to the Trojans shortly after the 2011 season ended and in doing so, left USC in a lurch, scrambling for depth at a critical position.
Upon his departure, many pundits smiled knowingly and began identifying the tailback position as a likely weak link in the Trojans pursuit of a national championship.
And they would have been right too except for one messy incident at Happy Valley, Pa., which changed everything.
When the brutal sanctions were laid down by the NCAA for transgressions committed by Penn State relative to the Jerry Sandusky horror story, the Trojans set their sights on the Nittany Lions' great running back, Silas Redd.
And when they garnered the transfer of the talented running back, those same fans who fretted about Carlisle immediately lost interest in that story as they celebrated the arrival of Redd.
Now with a couple of weeks to digest the news, one question still remains.
Are the Trojans better off with Redd instead of Carlisle?
This slide show will look at the pros and cons of a convoluted set of circumstances that led to what many think is a stronger running back unit for USC.
Redd or Carlisle?