It looks like you and I are completely on the same page about this. We currently have a core group of players - JBJ, Bogaerts, Betts, the catcher (whomever he is) - and maybe Shaw locked into relatively long term short money contracts. We have Moncada and Beni coming up to fill in where needed, also on short money.
The bad news is that we need cheap pitching and that doesn't look like something that's going to be available.
More bad news is that we have Alan Craig and The Fat Man drawing large salaries and making no contribution to the team.
The good news is that with so many players locked into long term/short money contracts we can afford to buy the pitching we need.
More good news is that we have money coming off the books this year that can be spent to upgrade the pitching, but that's next season.
My position is that now is not the right time to expend our resources, whether it be more money or especially top-flight prospects, to make a run at it this year. The trade deadline can be the worst time to get value for money (or prospects). IMO we take what we've got and run with it. I agree with Moon and others that this team could have the talent to go deep into the playoffs as-is, but this team seems to either play very well or very poorly. If we don't go deep one player isn't going to make the difference between "Ring" and "No Ring".