Xavier/Wisconsin coach on floor

[bwburke94]

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NCAAM rules, of course. Xavier's head coach is inbounds next to the Wisconsin shooter, who is attempting a 3-point shot. The shot is unsuccessful.

Assuming contact was made, which isn't clear from the only angle I can find, what is the correct call and how should play be resumed? Assume that if any whistle is blown for a foul/violation, it is blown while the shot is in the air before it hits the rim or backboard.

My forum signature should make it clear I'm not an official in any sport at any level, but I will mention it in this post just in case there is any confusion.