Phil sees what KF puts up with and has to do on a daily basis and has said hard pass.
^^^^
Set aside feelings about Ferentz for a moment. His job is not just on Saturdays. It includes:
Glad handing boosters and alumni
Press conferences and public speaking to local, conference, and national sports news
Practice planning (down to the minute, college practices are highly organized due to only being allowed a set amount of time)
Film sessions
Logistics for all team events (ie when and how they leave, where they go, what they do, how they do it)
Monitoring grades of 110+ athletes
Monitoring behavior of said athletes
Maintaining relationships of said athletes
Watching film and evaluating prospective athletes from next year, 2 years, 3, and sometimes even 4 years ahead
Recruiting THOSE athletes
THEN add game planning, offensive and defensive scheming, and game day responsibilities.
Phil Parker is in a coaching sweet spot where he has total control of his side of the ball, almost like a HC, but without the pressures and responsibilities of one. Not to mention he and Ferentz are obviously very loyal to each other.