The rock was the fact that JMD took the job and a number of assistants at this time last January after the available options are more limited, the hard place is that BOB was not available. Giving Caley more responsibility was the best option for a transition year while developing organizational depth. Caley refused to take the role without the title which led to MP and JJ as a desperate contingency plan.
I disagree with this.
The rock was the fact that JMD took the job and a number of assistants at this time last January
The Patriots didn't have to let McDaniels take so many assistants
the hard place is that BOB was not available.
We have no evidence whatsoever that that was the preferred option
Giving Caley more responsibility was the best option for a transition year while developing organizational depth. Caley refused to take the role without the title which led to MP and JJ as a desperate contingency plan.
Again, this is pure speculation. Still, if MP and JJ were a "desperate contingency plan" then they wouldn't have tried to re-tool the offense so drastically -- letting Jakob Johnson go and telling him they weren't going to use a fullback, and so on. If you're trying to keep things going while waiting for someone else, you don't overturn what you've been doing. And anyway why end up with Patricia covering both O-line and (effectively) OC? Why not recruit a competent o-line coach?
I keep coming back to the notion that something possibly happened behind the scenes to put him between a rock and a hard place. No idea what other than Patricia/Judge being a late fallback option. On the surface it makes no sense.
I have two guesses.
The first is that BB thought that he would coach the offense himself with MP and JJ as assistants. After all, there have been a million stories (often from former players) about how knowledgeable Belichick is and that he "could coach any position". Did he try? It doesn't look as if he did and that it was in fact left to Judge and Patricia.
The second is that Matt Patricia is one of those people who are good at whispering in the boss's ear. The Patriots' structure is absolutely top-down, so "if it doesn't work, blame me" is exactly right. But Ernie Adams had a special status. He wasn't, for whatever reason, anxious to take a prominent role, to work his way up to being a head coach or something, but he didn't have a superior-subordinate relationship with Belichick. My guess is that he would have been someone who could tell Belichick if something needed changing -- if Belichick had made a bad decision -- and be listened to. Patricia doesn't and couldn't have that status, but he had the Adams "special adviser" role. Perhaps he was using that to say to BB: "let me do this".
I don't know if that's true, but it wouldn't be the first time that someone has sweet-talked his way into unwarranted influence. Think Jack Easterby.
In any case, of course, the question is why BB didn't pull the plug earlier. Surely it was apparent that things were not going well by the end of training camp at least. The disaffection of the players was obvious.
It all reflects really badly on BB. I hope he's not too old or too much of a believer in his own legend to learn the lessons. Sometimes the very smartest people are most stubbornly and persistently wrong.