Request for help: What coach am I?

Greetings, and forgive the slightly off-topic post. I am a Bostonian visiting San Francisco, and a tall guy with a basketball stopped me in the middle of the street and said, “Do you know xyz xyz?” He said some name, and I didn’t know who he was talking about. I said, “No, I’m afraid I don’t.” He went on to say, “Yeah – he the coach for the and his name is xyz xyz. You look just like him. I’m serious, look it up!” I said, “great thanks, I will!”

Of course, later I completely forgot who he’d mentioned, and my friends are useless. But now I’m really curious.

So here is a picture of me in a shirt and tie, and then a more regular picture of me. I figured you guys might know. Thank you very much for any suggestions!