Some guys come ready to play defense at this level and some don't. Nigel is smaller, but doesn't have the quickness of Thomas to compensate. Long term I think he'll be fine, but its going to take some time to adjust to the physical defense on the perimeter needed to guard good Big 12 guards. OSU also probably has the best perimeter in the Big 12, so I think it was safe of oscar not to throw Nigel out there for a bunch of minutes, especially since Thomas, Will, and Foster held their own defensively.