Best guess right now:
Ruiz-C
Gallo-DH
Meneses-1B
Lipscomb-2B
Abrams-SS
Senzel-3B
Rosario-LF
Robles-CF
Thomas-RF
Bench: Nunez, Vargas, Adams, Young,
Rotation: Gore, Gray, Corbin, Irvin, Davies
Pen: Finnegan, Garcia, Harvey, Rainey, Williams, Weems, Gsellman, Bleier
IL: Strasburg, Garrett, Cavalli, Ferrer, Floro
Working off Imref's list, I might break things down into locks, likelies, battles, and still has a shot.
Locks (11 -5 position, 6 pitching):
OF - Thomas
IF - Senzel, Abrams
C - Ruiz, Adams
SP - Corbin, Gore, Gray
RP - Finnegan, Harvey, Rainey
IL -Ferrer 10 (15?) day; Stras, Cavalli, Thompson 60 day; Garrett - IL, length likely 10 day.
Likely IL, possibly available = Floro
Likelies (5 position, 4 pitching)
OF - Robles
IF - Garcia, Gallo, Vargas, Nunez
SP - Irvin, Williams (Davies could push either to the bullpen or Irvin to AAA)
RP - Ro. Garcia,
BleierBattles (3 positions, 3 pitchers)
DH /1B /LF -
Winker, Rosario, Meneses (2 or 3)
CF - Young (coin flip, could go with the 3 above and send Young down)
RP - Weems,
Law, La Sorsa, Davies, Gsellman (3 most likely, could be 4 if one of the "likelies" doesn't make it and Floro is IL). Weems lacks options.
Still has a shot
Lipscomb - pushing aside Garcia, Nunez or maybe Vargas
Rutledge - pushing aside Davies and Weems or Williams
Call - only if they want Young playing every day in AAA, they really want a 4th OF who plays all OF positions, and they don't think Senzel / Thomas /Rosario can cover CF.
M Barnes - probably starts in the minors to see if he can recover velocity.
Red would need to be added to the 40 man roster.Difficulty with the bullpen is the lack of options for anyone on the 40 man roster except Robert Garcia and, conceivably, Irvin out of the rotation. Meneses and even Senzel have options. Garcia does not. Davies or possibly Rutledge could knock Williams to the bullpen.