I don’t know about Nix. I think at the NFL level competent coaching/systems have at least 40% of success. With talent, work ethic, and sports IQ having the other highest %. But to say Harbaugh couldn’t improve our chances for success based on his past performances, I think, isn’t reasonable. A smart betting man bets on proven success and history. Coaching in the NFL is by far the most important in the major professional sports and Harbaugh has proven successful time after time, this cannot be debated.