Look at it from his point of view:
- Like it or not, this looks like a 2 + year rebuilding situation
- He knows he should let his son-in-law go (probably should be reason #1)
- There's going to be internal and external pressure to fire all of his coordinators, and he clearly doesn't want to do that. He knows at a minimum that Gilbride will have to go, Quinn should go and Fewell is debatable. He likes them, and he doesn't want it to look like he's shifting blame to them.
- He's 68, has all the money he needs. His contract runs through next year, so this offseason would be the time when extension discussions would normally happen. He's going to have to go through the self evaluation process.
- Last but not least, he just looks tired