It was the Rockies, so they might fall outside of the purview of "every other organization", but the main thing the Brewers did with Isaac was just identify him as an MLB calibre player and acquire him for nothing.
Every team needs four outfielders minimum, so far this year there are 118 players with at least 80 PA in the outfield. Collins is tied between 39th and 44th with 1.0 WAR.
From 2023-24 there were 110 players with at least 400 PA in the outfield, Blake Perkins 2.3 WAR tied him for 68th to 70th on that list.
Of course the template was Tyrone Taylor, one of the few Melvin regime holdovers that made it through to the Stearns & Arnold years. From 2021-23 there were 109 players with at least 600 PA in the outfield with Tyrone notching 3.7 WAR, good for 57th.
That's three different "fourth outfielders" the Brewers have gotten starter level production out of now, a big reason why their 37.2 WAR is 6th among all outfield units since 2021.
They've done the same thing at catcher with their 33.7 WAR since 2018 topping all of MLB. Of course getting three All Star level seasons from Contreras and Grandal helped in there, but no one expected Manny Pina to chip in 5.5 WAR when he was picked up for an aging out of the league K-Rod.
Omar Narvaez (5.1 WAR) was already an MLB player, but was acquired for nothing and the template for how the Brewers can help transform catcher's defensive chops. Victor Caratini had 1.3 WAR in 1,033 PA before joining the Brewers, then wracked 2.6 WAR in only 540 PA with Milwaukee.
Infield hasn't been nearly as good with Jace Peterson (3.0 WAR over 630 PA from 2021-22) the only real backup we got starter level production out of, but they appear to be one of the better MLB organizations of late when it comes to maximizing bench production from catcher and outfield.