Understood. Here is my view, regardless of the number you put as Knox's position, he just doesn't appear nearly quick enough or fluent enough to be running off screens around the perimeter. He seems just like Trey Lyles to me. Even without Booker and Aaron I couldn't see Lyles playing on the perimeter.
And you may be right. But I expect Cal to give him a chance to prove he can or can't do it. Then adjust accordingly.
For our sakes, I hope he is at least a solid threat from three. If he could knock down 2 a game at 35%, that would be helpful.