As a coach/educator you have to first decide “what” you are going to teach. You have to consider your philosophy and what stuff is really the most useful/most important to cover/get through.. due to time constraints and all that. Then you have to teach it, review it and get them to execute it. At least one of the 3 isn’t happening.
And there is one other very critical feature to teaching. You have to have students who want to learn... and will learn... and remember what they've learned... and then DO it.
We aren't seeing the practices and team meetings (except for 'The Insiders') so we don't know what goes on there. But there may be more blame on the players here than on the coach. Or 50-50, or something.
The old saying goes, 'Victory has a thousand fathers but defeat is an orphan'. Well it just might be that defeat has more than just one father, too.
There is a lack of something here -- we all see that. But it's just not clear who is dropping the ball (in more ways than one).