The beauty of second chances is that they free you from living in the past.

For Bobby Petrino, 13 years was plenty of time to contemplate what could have been at Arkansas . He knows he will forever be tied to the infamous motorcycle accident and affair with a subordinate that led to his firing in the spring of 2012, just months after the program's most successful back-to-back seasons since the Hogs won 22 straight games and a national title between 1964 and 1965.

But now he has a second chance.

On Saturday, he steps back on the sideline as Arkansas' interim head coach, bumped up from offensive coordinator in the wake of coach Sam Pittman's firing two weeks ago . In a rare opportunity that can only happen in sports or a Hollywood script, the 64-year-old coach has the chance to prov

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