I think the lost to Memphis shook them. They were thoroughly outclassed athletically against a very hot underachieving team that night. I'm guessing some things were said by several players that got personal maybe even coaches too and it affected the whole team chemistry. The loss to Mizzou looked like a lay down loss to me.
I played weekly until I was 62, so I understand perfectly. It usually doesn't happen to a whole team at once...