It is delusional to think that this team which has so many "core" pieces that are old, slow, expensive and in the twilight of their careers can rebound next year with a few tweaks.  Next year they will be older and slower and just as expensive and nearer the end.
It is said that there are five stages of grief.  Jays management is still in stage one - denial.  Four more steps until they reach acceptance and start the rebuild that is necessary.