After the Shapiro mess (Shapiro was a mess at Miami before Haith was there...Shapiro's been around for a long time screwing with the U), and maybe he saw some of the same meddling at Mizzou combined with knowing he didn't have much support from the AD and he just wanted to go to a place where all he needed to do was coach.
StL sportscaster Frank Cusumano attacked Haith today and Kim English was pretty quick to defend him. Cusumano agreed with Mizzou giving Anderson another year to prove himself because he was left with "the Titanic". English noted that when Haith arrived there were no FR and no signed recruits at Mizzou. I think kids went to Mizzou to play Kansas and Illinois every year. I know they're not playing KU anymore and somehow the border battle with Illinois seems to have lost its luster. Mizzou's move to the SEC may have gained them more $ but now they suck at everything.