The following comes from "Lombardi and Me" by Paul Hornung with Billy Reed. This excerpt comes from Redskin great Sonny Jurgenson:
Well before Lombardi came out of retirement to take the Redskins job, I had lunch with Bart Starr one day in Washington, and he told me, “You would really enjoy playing for him. The games are fun. We have such intense preparation during every week that it makes the games fun. You’re never surprised on the field.”
I remember that Paul Horung told me about Lombardi time. About how when he calls for a meeting at 10:00 a.m., you’d better be there at 9:30.
Leave no regrets on the field.
Lombardi taught you how to anticipate and react no matter what the situation. He prepared you, then he let you play.