A little late to the party, but let's face it, Rhule was looking for certain characteristics in his coaches. He didn't go out and get the best offensive and defensive coaches, but certain traits in those coaches that he can tutor and get the most of them.
In his previous stops at Temple and Baylor, he brought in coaches that had very little experience at the P5 or any college level and then turned them into some of the most respected coaches as of this last year.
He brought in Satterfield because I am sure that Satterfield, which not the best OC, had characteristics that Rhule can coach up and turn into a good OC/play caller.