Looks like the only staff not coming back are:

The three coordinators mentioned previously here.

Biloxi Pitching Coach Bob Milacki

Via the Sports Spectrum Podcast taped earlier this year (pre-heightened Covid19 actions): 2020 Maryvale Gold Pitching Coach Michael Schlact (he was the Rocky Mountain Pitching Coach in 2019)

Not Brewer-player specific, but a very interesting listen.

The link above provides written background before you listen to the 25-minute conversation. Like other Sports Spectrum podcasts (a few we have linked to prior), there is a touch of a religious overtone (I personally don't mind that, but even if you're not normally a fan of that being part of your sports entertainment, it's hardly overbearing at all).

Schlact actually took a paycut to go from managing and player procurement in independent ball to joining the Brewers' family, and that may be the most heartening part of the listen, as once again, we find a member of the organization who can't say enough about being welcomed into the Brewers' organizational family.

Always adds to our appreciation of putting together an organization top-to-bottom when we're exposed to stories like this.