Frustration makes for sloppy reasoning.
A lot of the players you're unhappy about were signed/drafted/traded for by the old regime, which we know did not like analytics and did not put much emphasis on plate discipline - there's only so much Stairs can do with Herrera, who definitely moves to the sound of a different drum. You can see Franco trying, same with Joseph, but you're asking players in their mid-20s to completely change their approach to the game. Klentak would not have traded for Williams and Alfaro and Thompson for the same reasons.
Where the new approach is showing up is in the lower minors, where they've been able to choose their kind of players, and not have to accept someone else's choices.
They are trying to implement this philosophy throughout the farm system, but it takes time to get everybody on the same page, and some players simply don't have the skills to become strike throwers or patient hitters.
For a decade we've been screaming at them to spend money, to trade for allocations, etc. Now the complaint is they aren't spending even more, not that they not spending - which s a sign of progress! They finally have a plan, and seem to be executing it pretty well.
Nor has this year really been a regression, the bullpen has lost an inordinate number of close games by guys who may not be here in a year.
Meanwhile, they're building a foundation of a solid rotation, the minor leagues are doing very well, if Crawford is underperformaning, Hall is overperforming, if Appel is a flop, Anderson is a comeback. That's why depth of the organization is as important as quality on top, if a D Brown goes belly up but a 8th rd pick like Altherr shines, you're still doing fine.
It's the second year of a deep rebuild, it's going faster than the other rebuild jobs I've seen in the past, and they have a lot more money to sustain success once they get there. But there are no quick fixes, paying $30M a year on a 6 year deal for a 31-32 year old starter might win you 2-3 more games for a couple of seasons follow by a few "Ryan Howard in decline" years.