Name three story lines you will be paying attention to when USC fall camp opens this weekend.
Running back rotation: With six tailbacks in the mix it will be interesting to see how the reps are divided in the early days of camp. In most circumstances you wouldn’t need to see the veterans as much in the opening days so it would be a good opportunity to get some work for the younger guys to see where they are, but these aren’t normal times for the Trojans. Three veteran backs are coming off injuries -- Silas Redd, D.J. Morgan and Tre Madden -- so the coaches will likely want to ease them back into action as soon as possible. Then there is sophomore Buck Allen along with freshmen Justin Davis and Ty Isaac. Lane Kiffin has stated he wants to develop the running game more this season, so how the reps are split in camp will be a good indication of who will be carrying the load for the Trojans this year.