As you know, head coach Chris Ash has dealt with a lot of turnover with his coaching staff this offseason. Three of his younger assistants departed, starting with offensive coordinator Drew Mehringer, leaving to work for his mentor Tom Herman at Texas. Then running backs coach Zak Kuhr did the same, leaving for Texas State to work for mentor Everett Withers. That was followed by assistant defensive backs coach Aaron Henry leaving for N.C. State, reportedly due to family reasons.
Ash took advantage of these openings and undoubtedly upgraded all three positions with more experienced coaches.