Followup question to another post

[CLAY]

I am calling a JV boys basketball game. Score is tied with less than 40 sec's left. A1 has the ball and is getting no pressure bringing up the ball in the back court. A1 who has stopped next to the coach for instruction, but contuines his dribble, A1 is patted on the rear by the coach who is standing out of bounds. I call out of bounds on A1. Was this the correct call.