Lesson (Re)Learned and Question

[Rufus]

Quick History
My one and only career ejection, 2 years ago, was this coach when he coached the JV squad. Since that time he was promoted to V. Never did another game with him coaching though he has hung around for JV/Freshman games to ride herd over the other coaches for his team. Have barely spoken to the man since I tossed him and bear no grudge or anything like that (i.e., tossing him wasn't personal, just business).

Present Time
Said coach is acting as an assistant coach for the Freshman game I called. He starts chiming in from the bench questioning calls. Me, trying to be accomodating and explain the calls, do so. Needless to say I've now enabled him questioning every call, loudly (remember, Freshman game in big, empty, gym).

We come back from half-time and he questions another call by my partner. Rather than T him (I know I've created this mess and unfortunately can't call a T on myself) go to the head coach and quietly let him know that (1) I understand his assistant today is the V coach but (2) bench personal are better seen not heard and that I can take care of it or he can.

After that there were no further comments.

Question
I know I should have had that discussion with the Freshman coach sooner and/or T'd up the assistant coach for his comments. I also should not have engaged him in any questions directed at me because (1) we only talk to head coaches and (2) doing so undermines the head coach.

How would you all have handled this from the start? Once, and if, you found yourself in my position at half-time how would you have handled? Any guidance, specifically in dealing with assistant coaches or cleaning up a mess you've help create, would be appreciated.