Tennessee head coach Rick Barnes yells instructions to players in the first half against Colgate during a first round men's college basketball game in the NCAA Tournament in Columbus, Ohio, Friday, March 22, 2019. (AP Photo/Paul Vernon)

Tennessee head coach Rick Barnes reacts in the second half against Iowa during a second-round men's college basketball game in the NCAA Tournament in Columbus, Ohio, Sunday, March 24, 2019. (AP Photo/Tony Dejak)