The Ducks went 12-2 last year. Except for the dumpster fire in AZ they were right where they needed to be. Big change this year was a shortened season, lost an NFL QB, key player opt outs, new OC, new O line, and now they're the youngest team in the FBS. Even LSU had trouble this year. You can't lose that many key players and still go 12-2.
Yes the play calling sucks which brings up the point that it sucked last year too, but there were better smarter players on the team able to over come it.
With that being said it's obvious the Ducks have a QB dilemma that may not sort it's self out next year. Who stays , who goes? Is there another Herbert or Mariota in the wings? If not then the Ducks won't be anywhere close to a contender next year. They'll be better but not good enough to pin any hopes on the CFP by a long shot.
Winning the north and the Pac 12 will be a major achievement next year.