Two wise decisions
Thomas' stock was likely never going to go higher than it is right now. While you can debate the merits of his stock as a top-five pick (remember Stromile Swift), you can't argue with his decision to leave at the peak of his value.
Davis, on the other hand, made a wise choice in returning to school. He wasn't a top-five pick. Heck, a lot of people didn't even have him high in the first round. So Davis was wise to come back, improve his conditioning and his game and raise his stock to a point where he can join his buddy, Thomas, in the NBA.
LSU coach John Brady shouldn't be complaining about losing Thomas. He helped get Brady to a Final Four and with Davis returning the Tigers should be strong again next year.