Previewing USC's offense: Kessler, Offensive Line keys to success in 2015

Jake Roth-USA TODAY SportsAll signs continue to point upward for the Trojans this year, with seven returning offensive starters and the conference's best quarterback.

The sanctions are gone, and the scholarships are coming back. USC finally has a chance to recapture the magic and success that Trojans fans enjoyed for the early part of the 2000's.

Now with 14 returning starters, their first full recruiting class in four years, and a healthy slate of talented players on the depth chart, this seems to be a difference Trojans team than years past. USC is picked to win the South in several preseason magazines/polls, and considered to be a College Football Playoff contender by many. For that…