With the oline injury issues Missouri's been having (LG,RG,RT all injured since before game 1 forcing usage of a freshman, a schollied-walkon junior, and another freshman) plus the QB injury/issues (he's gone on record saying that the pain from the re-aggrevation of his injury - he refuses to take painkillers - has made him lose confidence/question his abilities throwing the ball, especially deeper throws), I could see Vandy as possibly upsetting Missouri, especially if the former can come out and play like they did South Carolina.
That offense has just been a mess so far, unable to start clicking or offer protection.