Barely 24 hours after another blowout loss with the Falcons, Bobby Petrino was back in college football. Petrino was hired Tuesday by Arkansas, capping a whirlwind day in which he stunningly resigned from the Falcons after just 13 games. Petrino succeeds Houston Nutt, who stepped down at Arkansas two weeks ago and became the head coach at Mississippi. "Today was a day of decision," Petrino said at a late-night news conference in Fayetteville. "It was difficult on one side, very easy on the other. It was difficult to leave Atlanta, the staff, players, fans. The timing of it probably is the thing that made it most difficult. Coming to Arkansas was the easy part." Petrino got a five-year deal worth $2.85 million per year to take over the Razorbacks, according to an athletic department spokesman.