Faolyn
(she/her)
"Greater" monsters. By which I mean, things like goblin and goblin boss. Instead, you have a somewhat expanded list of NPC statblocks and then say things like "to make a goblin boss, put traits X, Y, and Z on the Bandit Captain statblock." Or even just take something like the racial template list from the DMG and put it in front of the NPC Statblock section, which is something they should have done in the first place.The issue becomes... what do you cut?
If they continue to make things like death dogs and blink dogs into very abbreviated entries, they could also do the same with griffons, hippogriffs, and owlbears.
And, well, they can shrink the artwork a bit.