They don't have to win the world series next year, but if this team isn't substantially better next season than this year then you start thinking that the org is still doing something significantly wrong.
Guys like Giolito and Moncada struggling some...that was to be expected. We're seeing some growth out of the bullpen already, we're seeing Lopez gradually figure out how to deal with teams, these guys should be getting better next year, and more are still on the way (so far without being hugely rushed too, which is nice).
Yes Abreu is going the wrong way and that hurts some, but if this team is in the discussion of worst team in the league again next year, then it's worth asking what Rick did wrong to wind up with so many guys who aren't taking steps forward.