Question doesn't make sense. If asking best former USC player in a sport, the answer would almost certainly be subjective.
Mark Sanchez
1. Reggie Bush
He was recently an assistant coach at USC.
As of 7/9/2012 the Seattle Seahawks have 6 former USC players on their roster. If you check on USC's official website, (http://www.usctrojans.com/sports/m-footbl/trojans-in-the-nfl.html) it shows the number of active former USC players currently in the NFL. However, this website doesn't update very often. I just looked at it, and noticed that they have players from the 2011 season still listed on teams that they no longer play for.
USC
Fred Lynn
Yes, former USC and Cleveland Browns QB Paul McDonald was a southpaw.
To me its USC or CAL
Yes USC is the best, UCLA, Notre Dame, Florida, Alabama, Oregon, Stanford, Texas and so on are terrible
Yes, former USC and Cleveland Browns QB Paul McDonald was a southpaw.
Matt Leinart is with the Cardinals,Reggie Bush is with the Saints,And Carson Palmer is on the Bengals.
usc