After Cinemaodyssey took over updating and improving the MLB Player Facepack in 2022 (which he has done incredibly well--thank you, CO!), I turned my attention to managers, coaches, and umpires (M-C-U). During the past four years I have primarily focused on identifying all in-game (in the dugout, on the field, or in the bullpen) coaches.
While MLB had rather strict guidelines through 2012, those rules became more like suggestions over the past dozen or so years, until teams had essentially free reign to add coaches to their in-game staff. Some teams have had more than 10 coaches performing in-game duties. I have included photos of all coaches I could confirm appeared in uniform during a game during that period, but more will certainly be found. Please note that I am not including bullpen catchers in my coaches list, even though some also carry coach-like titles.
You can download the M-C-U Facepack through the information page link in my signature line, or directly
here.