I'd be picking up his assistant coach for your team, after all she is a great recruiting tool. I am sure how he is talking about her is getting around town and its only a matter of time before she hears about it.
OK, so I'm not always a "high road guy." I'd go sit in the stands and then meander along the sidelines talking and "hobnobbing" with the parents as their dds tryout. That would drive him crazy. Naturally, I'd have to wear my team shirt while doing so. Every now then if I could catch him looking, I might lean over and say something to whomever and then smile.
That's what I wanted to do. My Wife on the other hand told me NO. In an effort to stay married to the person who supports me most I am going with her recommendation. But man would it have been fun to do what you are suggesting.
I understand. My wife and I have been married for 30+ years now. What we agreed to so many moons ago is that once in a while I'm going to have a "Darrell moment" and she knows that nothing is going to change that. I try not to have them too often but when I do, they are typically legendary. You might see if you can work on some kind of agreement like that.