I'm really surprised Petersen would take the Arkansas job. Him and Gary Patterson are the two top names on everyone's list every year and both of them can have their choosing of which program they'd go to.
Arkansas is a good program and definitely Top-15 in the nation but it's no Texas, Oklahoma, USC, Ohio State, Alabama, Florida, etc. Petersen can keep waiting it out every year for one of those jobs to eventually open up. He only has one chance to parlay that Boise success...why waste it on Arkansas?