ok, Harbaugh, Tressel, any others? i'm not necessarily doubtful, just genuinely curious because no others spring to mind.
Since 2004, 18 FCS, Division II or high school head coaches have been hired as the head coach of an FBS program. At their previous stop, those coaches compiled a combined record of 744-347, with a winning percentage of .682.
Promising resumes, however, have not always yielded continued success at a higher plateau. At their first -- and sometimes only -- FBS head coaching stop, that combined record dipped to 225-375 (.375).
keep in mind this is referring to all FCS to FBS hires, not just P5. also, this quote is from 2014, so there may have been some success stories since then, but still...