What would a team entirely made up of GMs look like, anyway? Well, it's certainly stuffed with Gregs and Georges ...
*Indicates All-Star
**Indicates Hall of Famer
MGR: Gene Mauch* (1900+ wins, but 2000+ losses)
LINEUP
C Gus Mancuso* (.265 hitter caught 1460 games in 17 years for 5 teams)
1B George McQuinn* (.276 hitter 7-time All-Star mostly for WWII-era SLB)
2B Gil McDougald* (five-time NYY All-Star also took turns at SS, 3B)
SS George McBride (.218 career hitter for 16 years; started for 1908-16 WSH)
3B George Moriarty (.251 in 1076 games mostly for NYY, DET, 1903-16)
LF Gene Moore* (.271 hitter made 1937 All-Star team for BSN; .283/16/70)
CF Garry Maddox (never an All-Star, but eight Gold Gloves in 15-year career)
RF Gary Matthews Sr.* (.281, 234 homers)
DH Guillermo "Willie" Montanez (.275, 139 homers, 1966-82 for nine teams)
BENCH
C Jerry Moses* (Made '70 All-Star Game as .263 BOS platoon C with Tom Satriano)
IF George Magoon (2B/SS/3B hit .239 for five teams, 1898-1903)
IF Gene Michael ("Stick" hit .229 as pre-Bucky, post Kubek NYY SS)
OF George "Catfish" Metkovich (.261 in 10 seasons for six teams, 1943-54)
UTIL George "Doggie" Miller (.267 hitter played everywhere but P, mostly PIT, 1884-96)
ROTATION
RHSP Greg Maddux* (but soon to be **)
LHSP George Mogridge (132-131 career for five teams, 1911-27)
RHSP George "Jouett" Meekin (33-9 for 1894 NYG; 153-133 career)
LHSP Greg Matthews (11-11 for 1987 NL champ STL, 28-33 career)
RHSP George "Win" Mercer (generous nickname for 131-164 career SP, 1894-1902)
BULLPEN
CL Greg Minton* (150 career saves would also lead All-Greg team)
RHRP Guillermo Mota (New FLA fireman getting first chance to close)
RHRP Greg McMichael (31-29, 53 saves 1993-2000)
LHRP "Cowboy" George Milstead (3-7, 2 saves for 1924-26 CHC)
RHRP George "Red" Munger* (swing man 77-56, 12 saves mostly for 1943-52 STL)
RHRP Guy Morton Sr. (1-13 as '14 rook with CLE, 98-88 career)
A number of otherwise qualified players, mostly pitchers, didn't make the cut, including several 20-game winners and the wonderfully-nicknamed George "Doc" Medich. But surely this team can be better ... go ahead, Bauxites, play "Assistant to the GM Team."