The start of training camp is a time for optimism all around the NFL — even for a team that has gone 11 straight seasons without a winning season. Oakland Raiders coach Dennis Allen watches players stretch during NFL football training camp Friday, July 25, 2014, in Napa, Calif. Oakland Raiders owners Mark Davis, right, laughs on the sideline with general manager Reggie McKenzie, left, during their NFL football training camp on Friday, July 25, 2014, in Napa, Calif. Oakland Raiders running back Maurice Jones-Drew, right, and quarterback Trent Edwards (5) stretch during their NFL football training camp on Friday, July 25, 2014, in Napa, Calif. Oakland Raiders quarterback Matt Schaub throws the ball during NFL football training camp Friday, July 25, 2014, in Napa, Calif.