Todd McClure has endured some tough times with the Falcons. As the team's starting center since October 2000, McClure has snapped the ball for Chris Chandler, Michael Vick, Doug Johnson, Matt Schaub, Joey Harrington and Byron Leftwich. McClure can't imagine that any of his quarterbacks would have handled this season's difficulties better than Harrington. After spending one game as the No. 2 quarterback, Harrington will start again when the Falcons host San Francisco on Sunday.