I don’t know about a book, but Mike Ekeler did write a letter about the process leading to his recent hire at Georgia. He sounds like a classy addition to the staff.
“We talk to our players all the time that pressure is really a privilege. … We can’t run from those things. We know that. How you embrace that is what is important to us. That’s really the key ingredient.” — Kirby Smart, SEC Media Days, 7/17/18