Respect how he handles his business. Grumpy or not he develops his staff and kids and what Elise would you want and still knocking on a potential CFP playoff.
I hated my high school coach when I played for him but learned to respect him as I better understood how he was trying to motivate me and get me to the next level. I didn't see it that way at the time nor did I understand it then. Whenever I get the chance to see him I have the utmost respect for how he handled my development and we have great conversations.