To me, through all the Brez bashing, I'm surprised this is not discussed more.
We heard the FO talk about the need for a #2 SP'er behind Crochet. We know we had that big need along with at least 2 more major needs: a big bat and a 3B/2Bman. Maybe 3 needs if you count 1B, but the big bat need should fill the 1B or 2B/3B need, so it was essentially 3 big needs.
Instead of filling these three needs with one player, he filled one need with 2 players (Suarez & Gray) and maybe half or three-quarters filled another need (Contreras as the "big bat" or 1Bman.) So, at best we added 3 big pieces and filled just 2 of 3 big needs. At worst, we filled 1.5 of 3 big needs while adding 3 significant players.
Now, there is still time a resources (mostly trade capital) to add a 3B/2Bman. The chance to add a big bat is probably too remote to even consider. In theory, adding a significant player to play 3B/2B would fill 2.5 or 3 of the 3 biggest needs with a nice added boost to the rotation, which by attrition could help the pen. (Crawford/Harrison/Sandoval/Oviedo to the pen?)
Instead, I hear Brez blew this and blew that, even from posters who didn't want Breggie at that cost. (And Breggie does not fill the big bat need, anyway, IMO.)