When Bobby is talking to the coach he pulls his headphone from his right ear, and turns to his left to talk to the coach. When he turns back the left earphone is in his lap and the right earphone is in his ear.
If the ball is supposed to have come through the window, then the fence should have been destroyed instead of one or two pickets damaged. In addition, the ball would not have gone through the window only. The bottom of the wall below the window would also have been destroyed.