I wish him and his family the best.
Kelly doesn't get the recognition he deserves because he is career is downgraded because he lost four Super Bowls which I find is crazy. I never got that your team is considered a bigger loser if you lose a Super Bowl than going 8-8 and missing the playoffs.
Kelly made the no huddle and hurry up offense relevant. Boomer Esiason was doing it first in Cincy, but Kelly was the guy who showed that you can demoralize defenses with it. Kelly really has a stamp on today's NFL because most teams employ a version of the K Gun offense (at least part of the time) in their system.