I think we have different definitions of “moves”. My list is restricted to transactions made for the 2026 season. Of your list, I think only 7 and 8 qualify as “moves”.
#9 is a move/decision that went objectively bad.
If you want to open the list to “decisions made, even those involving existing personnel” than I think the list is limitless.
Decisions that went bad:
1. Letting Alonso go
2. relying on Manaea
3. relying on Senga
4. relying on Peterson
5. relying on Baty
6. relying on Vientos
7. Relying on Alvarez
8. not firing Mendoza during the winter
9. not firing Mendoza after the 12 game losing streak
10: not firing Mendoza in May
11. Firing Hefner
12. hiring all of the coaches they hired
13. wasting time pursuing Kyle Tucker
14. instituting the shitty pitching philosophy that ruined Manaea Senga Peterson Peralta Tong Myers
15. instituting the shitty hitting philosophies that resulted in down years from Bo, Baty, Vientos, Alvarez, Lindor, Robert
16. running the corpse of Jorge Polanco out there when he was clearly useless
17. Changing Tong’s arm angle
18. Running the corpse of Marcus Semien out there day after day when he’s clearly washed up
19. Playing Vientos in the field
20. Allowing save situations to dictate the use of Devin Williams
21. terrible baserunning
22. not stressing fundamentals enough resulting in stupid baseball and Ronnie getting mad
23. Sending Lindor in game 3 vs Pittsburgh
24. Dicky Lovelady
25. Not playing Mauricio during these last two months
26. not resigning Rico Garcia
27. Demoting Zac Thornton
28. not retaining Antoine Richardson
29. Scheduling Freddy Peralta jersey day in August
30. Wasting the opportunity we had to try Soto at 1B in meaningless games
I mean. I can keep going