TO did look under the weather a bit last night and he also looks like he is down on himself, but for a local kid who was initially projected to get only rare PT he is clearly the Boneyard whipping boy ala Taliek Brown (but at least Taliek was a McD's AA so you could understand higher expectations).
TO (and Wolf for that matter) often pick up fouls because the guards and wings lose their man while playing off-the-ball defense (reference Bazz losing Dunn on a back door in OT) or getting screened allowing their man to penetrate (reference Council's frequent penetration). The poor rebounding often results from the same problem: the opponent penetrates which results in TO or Wolf attempting a blocked shot, leaving the, out of position to box out or collect rebounds.
Do they both try for too many blocks?...yes, they do.
Are they both not great at moving their feet, leaving them out of position to more effectively stop the drive?...yes again, but the ability to recover that quickly as a big inside on defense is a special skill.
I'm not saying that Bazz & Boat are bad defenders (they are both quite good at on-the-ball D and anticipating off-the-ball steals) but because of their lack of strength and bulk, they are relatively easy to manhandle on screens (several illegal screens were missed last night) and they both have a tendency to sneak-a-peak at the ball, hoping to get a steal and end up losing track of their man. Omar is still an inexperienced defender and gives up penetration too easily.
So, TO's deficiencies are not all his fault. If he can get well and regain his confidence, we can see more ND-like performances.