After Bobby Petrino's surprise resignation Tuesday brought another twist in an already tough season for the Falcons, Arthur Blank said he felt "abused" and "betrayed" by the coach's decision to quit the NFL and return to the college ranks with Arkansas. Petrino left his coaching job at Louisville last January to join the Falcons. "My issue is not that he elected to go back to coaching in college," Blank said. "My issue is timing. My issue is responsibility. My issue is his commitment to this organization."