In a sentence

[Scrapper1]

Originally Posted by Mark Padgett

Let me throw this into the mix just to confuse things even more. A1 is dribbling the ball. B1 touches the ball. During the time that B1 is touching the ball, A1 fouls B1. Would you call a player control foul on A1? Remember - player control is defined as holding or dribbling a live ball inbounds.

You haven't given us enough information. Did B1's touch cause A1 to lose player control? It's just a technicality, in any case, because even if A1 did lose player control, it's still a team control foul (assuming it's not intentional or flagrant; in which case, again, player control is just a technicality). Same penalty.