Jay Glazer FOXSports.com, Updated 13 minutes ago STORY TOOLS: Bobby Petrino resigned as Atlanta Falcons coach on Tuesday and will take the head coaching job at Arkansas, sources told FOXSports.com. He lasted only 13 games with the NFL team. Petrino called a staff meeting late Tuesday afternoon, a meeting which last about 10 seconds, sources said. "He just said to us, 'Guys I've resigned, I'm going to Arkansas. I'm sorry. I'll be talking with you guys in the future.' And with that he turned and walked out the door. We haven't been told anything else," said one assistant coach. At this point, the assistant coaches have not been told who will be coaching the team going forward. Petrino left Louisville to become Falcons coach in January for a five-year, $24 million contract, largely because Atlanta felt he could help star quarterback Michael Vick reach his full potential.