Thank you. While it's slightly misleading since 2020 was the Covid year, the Sox traded 55 games worth of Mookie. That's it. 55 games.Even putting aside the fact that once they decided to trade him Bloom had to take the best that he could get, the trade was not Betts for Verdugo/Downs/Wong. It was 1 year of Betts for 5 yrs of Verdugo/6 yrs of Downs and Wong.
Ignoring anything the Sox might get from Downs or Wong (and the money saved by moving Price), Betts' bWAR/fWAR for that last year of control was 3.6/2.9.
Verdugo on the other hand has put up a total bWAR/fWAR of 3.9/4.3 with 2.5 years of control still remaining.
You can argue that not extending Betts was a "catastrophic failure", but the trade itself is much closer to a win than a loss.