I don't know. I'm not present during those conversations and when I am in "group" setting, yes the coaches refer to me that way.Well yeah, but that wasn’t the point. All those guys refer to him simply as Coach when speaking about him to others. As if there is only one. So why would he stop being Coach. I bet other coaches don’t refer to you as Coach when speaking to others about you.
The point is that we will know the context of the conversation to whether or not the conversation is about Coach Saban or Coach Sheridan.