Dallas Cowboys defensive coordinator Rob Ryan, left, and head coach Jason Garrett, center, watch running back Lance Dunbat (25) during NFL football practice at Cowboys Stadium Thursday, June 14, 2012, in Arlington, Texas. Ryan knows he tried to do too much in his first season as defensive coordinator with the Cowboys, especially with no offseason workouts because of the lockout. But he believes the defense just lost confidence after starting off fast. (AP Photo/LM Otero)