1.) Kelly seems to have grown most in his “Coach as CEO” role. He has improved the most with administration of the team (Hiring, facilities, training table, etc), but his gameday/game prep portion of his role has a long way to go still. Some of this can be accomplished via delegation, but the truly elite coaches seem to excel at both.
2.) At this point, I’m not sure there is anyone else that would take the job that would be better. (I’m actually starting to worry about what will happen once Kelly retire in 4 or 5 years.)