Baseball Betsy posted the first posted workout groups of the year up on her site.
The first thing that jumps out is Yoel Mecias is in Group 3, not with the list of pitchers rehabbing. Also to answer some questions, no to Kevin Brady and yes to Braden Shull. Also Larry Greene with the Group 4 outfielders.
Also it is important to remember that these are the first group assignments and that there are a number of players in the majors, including a bunch of outfielders.