JO aint as quick and athletic as Smith and Siva - not even close. Those guys finish at the rim because they are fast and explosive - they can elevate at the rim. Shades of D. Rose or for the OFC members one Nate Archibalnd. Odum is good at many things but he is not the quickest or most explosive player ever to step foot on a basektball floor. The biggest reason Smith and Siva are able to succeed around the rim is a combonation between speed, agility, leaping ability and body control that is rarely found. You can't just watch guys like that and expect a player to imulate that style of play. Half of those shots are blocked if it's Odum shooting them, not because he is not any good - yet he is not as quick to the rim, the defense has time to react to him. They don't have as much time to react to Smith.
That said - let's hope Cuse beats Michigan, I'd like to see those guys attempt to finish around the rim with an equal speed and athletic ability of Cuse.