My problem with first time coaches is the learning curve. Quick, name the last first-time coach to win a Superbowl their first year! My point is that, if we hire a first time coach, they may be very good...eventually...but there will be learning and growing pains.
I for one am tired of waiting on a coach to learn to lead this team to victory. We've tried that approach for the last 15 years. This team needs someone with experience, a "been there, done that" approach, to show this team how to win. Over the past 2 decades, this team has a losing culture from lack of experienced leadership. We need someone who can show this team how to be a winner, because they've been one. We DON'T need a coach trying to figure out how to be a winner along with the team.
All that is just my opinion, of course.