If we don't get to the promised land or close to it then the CORE four should at minimum become the Big Three. Pick the 3 guys most important to winning and build around them.
It's darn near impossible to transform the offense and raise the ceiling of a team when its main pieces remains exactly same - year after year. As we have seen repeatedly they will revert to what is comfortable and that is just human nature.
Like others have mentioned ATL kept Teague, Horford but moved on from Joe and Josh while adding Korver and Milsap. At the time of the moves no one would say that Milsap and Korver are more talented players than Josh and Joe. However, removing those guys allowed ATL to transform their offense and raise their ceiling.
GSW removed Monta (got them to playoffs) then later moved DLee and Iggy to the bench - that shakeup has raised their ceiling from "toughout" to "contender" in one season.
Also "let's just enjoy the ride" mentality is fine as long as the Grizz Mgmt has the "let's win it all" mentality. "Let's win it all" mentality will require some changes to main and minor pieces just like every other competitive professional team sport in history.