Not sure why you would have "yield at" Rankin, but I assume you mean yell.
In which case I did not know that the ticket in gave you the right to yell at the coaches because you think you know best. More so considering the coaches track record. Like it or not, he and his staff call the shots and some person yelling in the stands should not change that.
Right call or not, don't do it in front of the team he LEADs and undermine him. He is the authority figure, he is the one that is up for blame in a loss. He listens to some person in the stands and they don't win, it is still his fault. I don't mind if you second guess the calls, but if you are doing it behind the bench, well you need to sit down shut up and support and address it like an adult at a later time.
When we pay your ticket we can tell you what to say? Well when you devote your time, your effort, and all that Rankin puts in to the football team, you can call the plays. I bet he knows the team and strengths better than you.