After the game today this is what their big acquisitions have accomplished
Soto - 32 G, 3 HR, 6 RBI and slashing .218/.381/.345 for a .726 OPS
Hader - 11 G, 8.2 IP, 13.50 ERA, 2.42 WHIP
Bell - 35 G, 3 HR, 11 RBI and slashing .205/.322/.307 for a .629 OPS
Drury - 27 G, 5 HR, 15 RBI and slashing .220/.262/.410 for a .672 OPS
The 4 have combined for 0 fWAR and -0.3 bWAR. Their record since August 3rd is 17-18. The only reason they are still in a playoff position is because we are 18-20 over the same span. Preller has a pretty extensive history of buying the shiny object even if the cost is extreme. He also loves buying players when their value is the highest (Bell and Drury were both playing well above their career norms at the deadline)