I was someone who really wanted to see the offense under the control of Pete C, and now I got what I wanted, I realised how little I truly understood at that time.

Pete C isn't a coach, he is a X and O's guy. I underestimated the level of sway that Payton's mere presence had. If these guys played like this for Payton, he would be in their faces immediately.
Pete C does not demand that level of respect, because he isn't a guy that the players fear failing in front of.

To me, it all starts with DA.
His off-season press conference really excited me, but it now seems it was just talk.

The D line, whilst they've started to pick up steam, aren't anywhere near as dominant as they were before DA was head coach.
We had a fantastic special teams unit for years that all of a sudden sucks this year.
Defensive backs, which DA coached for years, are probably the weakest unit on the defense. We let so much talent get away and replaced it with guys who either don't really seem to try (Mathieu), guys that are injured or pending court cases (Maye) or players on a career rebound (Evans).

I really hope something can light a fire under them and start to string some wins together, but DA needs to be under the microscope.
I say 5 wins or less and he should be sent packing.