Mississippi State head coach Dan Mullen and Michigan head coach Jim Harbaugh worked a satellite camp together in Mississippi on Wednesday. After the camp, Dan Mullen posted this to his twitter account…..

Spending time with @CoachJim4UM and the Michigan football coaches today brought back some good memories. #HailState pic.twitter.com/5SBt6A7A4G — Dan Mullen™ (@CoachDanMullen) June 8, 2016

Harbaugh is not one to take a shot without responding so it will be interesting to see when and how he comes back at Mullen.