The abrupt resignation of a Mississippi State assistant coach was not due to publicly stated "personal reasons," but rather a NCAA investigation, according to ESPN:
Former Miss St WR coach Angelo Mirando resigned in wake of ongoing NCAA investigation into his recruitment of at least one Bulldogs player— Joe Schad (@schadjoe) August 23, 2012
Mirando had been with head coach Dan Mullen since joining the Florida staff as a graduate assistant while Mullen was offensive coordinator in 2008. He came with Mullen to Starkville, and was promoted to wide receivers coach in 2011 when Mark Hudspeth left that position to become the head coach at Louisiana-Lafayette. Former Minnesota head coach Tim Brewster is expected to be announced as Mirando's replacement.
Mirando resigned August 19, just 13 days before MSU opens their season against Jackson State, citing "unforeseen personal reasons" in a statement released by the university:
"I have enjoyed my time at Mississippi State as a graduate assistant and as an assistant coach. I have made friends that will last a lifetime; however, due to unforeseen personal issues, I believe it is in my best interest to resign from Mississippi State," Mirando said in a statement released by the school. "I want to stress that these issues are personal. I look forward to pursuing other opportunities in the future. Finally, I want to thank my friend and mentor Dan Mullen for giving me this chance."
Mullen did not comment further on the departure of Mirando, nor the circumstances regarding his leaving the team.