So, DM identified this as the problem: “You can say what you want, but at the end of the day we’re just not creating enough big plays on offense,” he said. “And conversely on defense we’re giving up too many big plays. And that’s really as simple as it is.”
I don't think anyone can disagree with that conclusion. The REAL issue is identifying what was the cause of that.
And DM's answer for that is two-fold. One, he has to concentrate fully on coaching, "I have to become more involved." Clearly, he believes, right or wrong, that last year's lack of success was a largely a coaching issue.
Secondly, the schemes will be "tweaked," not changed: "A streamlined passing game, the quarterback as a passer and a runner, tweaking disguises and coverages on defense and a spread punt formation on special teams. There are other changes Marrone is contemplating, but those are the headliners."
I think that this means that the Coordinators will have less say in the overall approach next year, and schemes will reflect more of what DM believes needs to done to be successful.
Next year will define DM, IMO.