I'm actually getting a little less worried about Westry.
I saw the video of him going up to dunk recently and thought "wow, he really barely made it!"
But Westry's game has always been a bit of an "old players game." Excellent court vision, strength, playing the angles, bodying and harassing defense.
Most of his high school highlights are not like Cuffe's. Westry wasn't dunking on guys in traffic from startling distances. Westry was getting to the basket with deception and change of pace and finger rolling, reversing under the rim or floating it in there. He was a top level athlete, but certainly not elite for a division 1 basketball player.
My guess is he'll still be able to make the right pass, get a body on his guy on defense and be in the right place at the right time, even if he isn't quite as explosive as he used to be. His hands are going to be just as quick and disruptive.