Apparently Jim Mora, HC at the time (2000), was told that in order to stay he needed to fire the entire defensive staff. Mora decided not to. Dungy was the new HC the next year (2001).
Hans said that we really have no idea what is going on behind the scenes. Holmoe may have given some required changes to Kalani to make, that Kalani is still deciding about or will be acting on at the end of the season.