I mentioned in another thread that I wouldn't want another assistant with no HC experience, but that made me think about Kenny Payne from UK. He has been Coach Cal for 7 years and has worked with the best Bigs in the NBA. I think he should be considered now that I think about it.
Bio
http://www.ukathletics.com/sport/m-baskbl/2016/roster/559d90bce4b01c7eefd5eec6
Bio
http://www.ukathletics.com/sport/m-baskbl/2016/roster/559d90bce4b01c7eefd5eec6