Sioux, I agree and the last 7 years have been exceptional. Only the very critical around here would argue the team has not played at a top level since the arrival of Wilson, who was a missing piece of the puzzle. But the present staff and front office are still doing it better than any other regime in the history of the team.
I don't agree with your premise however if you believe this halcyon period has occurred because of the team's offensive prowess, In fact lately for the past 3 seasons the O is holding the team back. Lately cracks are starting to show as other teams have figured out how to best exploit a period great D and frustrate a frequently toothless O, that can't give them a fair amount of time off. If you want a meaningful stat start looking at the inequity in TOP. If there is a reason why the team is not winning as much it relates to a weaker than usual O. Is that scheme, or a consistently poor OLine that gets rebuilt annually with castoff spare parts, draft picks, or mostly inexperienced players who do not stay together; to their noticeable inability; and which seems perpetually incapable of protection and run blocking? Arguably each factor plays into the discontent as the scheme seems glacially slow to adjust to the reality the 5 guys up front are doing their best to look like speed bumps. Unfortunately even then an inability to use the mismatch talent the team has on the roster is causing the brakes to continue to drag on the O. With the O underperforming excess pressure is being heaped on the D and they are wearing out, To me change seems to be mandated.
I think every single coach on the staff is an NFL caliber coach because of their ability and not because of Pet's loyalty. Each has the ability to deliver a good product but a team is more than one unit doing it's job. Of course. They are not on Pete's level though a few may become as capable. The present front office OLine philosophy of going cheap on the OLine and the reality that the O has a weakened ability to do the stuff they want to do as a result has not been compensated for by any noticeable adjustments in scheme. The team still prefers longer splash type passing and would love to be able to run effectively yet the run blocking and pass protection aren't there to allow it. Here the fingers can be pointed at the whole organization. A quicker developing O that by it's speed offers more protection to RW may help, but that hasn't shown up yet. Is this on Pete, Cable, Bevell, or because of a FO philosophy necessitated by cap restrictions it's hard to know but the O is waekening the D.
I still think all the problems are fixable but some change needs to happen first.