I just think it's very premature to make this kind of judgment. Opening Day is four months away. Saying "they're making no attempt..." is based on what? Pass judgment on the off-season when the off-season is over - not at the beginning.
Galvis "hit much better than anticipated"? His OPS+ was 79. His lifetime OPS+ is 76. Yes, he got hot late in the season, and some fans decided he's somehow turned a corner. I have my doubts about that - but I see no reason why he can't reproduce that OPS+ (79) in 2017 - he's been at that number for the past two seasons.
Rupp probably peaked, offensively, last season - he was 27, and that's a pretty common age to be peaking. I don't know that he'll repeat (OPS+ of 99), but again, I see no reason why he can't replicate his career average (OPS+ of 90) in 2017. A bit less than 2016, but... what are the options? I doubt you're going to find a competent catcher on the market, who can better an OPS+ of 90, who will sign short-term - or who is available in a reasonable trade. Who did you have in mind?
Tommy Joseph has a total of 347 major-league at-bats. OPS+ of 115. Not overwhelming - but with that sample size, it's (again) premature, IMHO, to be passing judgment. If you bring in some veteran...you never find out about Joseph.
Lastly, I simply don't buy the argument that "they need to spend the money." Spending money does not necessarily equate to improvement. Fixating on the payroll, instead of progress against the plan (the long-term plan - not "making it look good" in the short run), is (again IMHO) wrong-headed.
If we see specific opportunities - that make sense in terms of the plan - that are foregone, because they would "cost too much," then we can have a conversation about that. But I haven't seen that (with the possible exception of arguments about international spending this winter). I've seen people complain that they're not spending enough in general, or that they're not doing enough to improve the short-term product - but skimping against the long-term plan. Haven't seen that case made.