Pirates should be next on the list.
The Royals bumped up their payroll a bit recently. Too bad it was on Jose Guillen, Jason Kendall, Kyle Farnsworth, etc. . . There is not an MLB /MLBPA agreement outlawing stupid ("There's a fine line between clever and stupid").
SD and TX do not have the long history of pocketing money that the Marlins have (allegedly). The Twins were cheaper, but more successful in their cheapness, than TX. The problem with TX and SD is that their ownerships were dragged down by outside factors. TX is still signing FAs like Vladi and Harden for multi-million $ contracts, and were actually under the financial supervision of the MLB front office. SD should work itself out once the sale goes through. If they have to move Bell and Adrian, they will do so to get a good return.
This letter is not about the occasional need to strip down and rebuild so you can contend. It is about the persistent pattern of refusing to pay anything at all.