Back in November I posted a ranking of GMs, certainly not as a definitive statement, but mostly to prompt conversation. It's been approximately six months so I thought I'd revisit the topic, considering your feedback as well my current perception of the men in question (as I was curious how it had changed).
A couple of things to point out. I used Baseball Reference's list of current GMs a guide, as it's difficult to judge exactly how power shakes out in some cases. I made one adjustment this go around adding to Theo Epstein to the Cubs line as I think it's fair to assume he's pretty involved in the sorts of decisions we associate with a GM.
As I mentioned before itt goes without saying that Brian Cashman is operating in a much different universe than say Andrew Friedman. So to some degree we're comparing apples and oranges. There are also a handful GMs who are new enough to the job that's difficult to get a handle on what exactly they'll bring to the table. There are also a number of GMs who operating edicts to tear down (Marlins) or spend big to win now (Tigers, Angels, etc) that I tried to factor in when appropriate.
I've separated the GMs into tiers this go around, in almost all cases I might move GM up or down in tier if I sat down to rethink things in a week. Having not thought extraordinarily deeply about this I'm sure still substantially under/overranking four or five guys at minimum in this iteration.
Lastly, this is an attempt to balance both recent work as well as a body of work.
I've included their previous ranking to the right in parentheses and if I significantly moved someone up or down I included a short blurb as to why that was.
1. Jon Daniels - Rangers (1)
2. Andrew Friedman - Rays (2)
3. Billy Beane - A's (3)
4. John Mozeliak - Cardinals (11)
Jeff Lunhow receives and deserves a ton of credit for scouting and player development during his Cardinals tenure. But it was probably unfair to not give Mozeliak a greater share of the credit. Ultimately he's the man in charge and there few teams--if any--who's present and future looks better.
5. Brian Sabean - Giants (8)
6. Alex Anthopoulos - Blue Jays (4)
7. Mike Rizzo - Nationals (5)
8. Walt Jocketty - Reds (12)
9. Dave Dombrowksi - Tigers (17)
I may now be overrating him. But I don't think I gave him sufficient credit for series of recent trades that have been an enormous success, acquiring: Austin Jackson, Max Sherzer, Doug Fister, and Anibal Sanchez. Mike Ilitch's resources have allowed him to hand out some huge contracts but none of them have of the incredibly ill-advised variety. He also deserves credit for his work with Expos.
10. Frank Wren - Braves (6)
11. Dan Duquette - Orioles (21)
Was sufficiently convinced that I was underrating him previously, not giving him appropriate credit for his work with Montreal and Boston. I don't have a clear read on his time with Baltimore but don't see any reason to give him demerits for that tenure.
12. Jed Hoyer/Theo Epstein - Cubs (9)
13. Terry Ryan - Twins (22)
Wasn't giving his previous success enough consideration and I generally like what he's done thus far since returning to the job.
14. Sandy Alderson - Mets (10)
15. Brian Cashman - Yankees (14)
16. Neil Huntington - Pirates (23)
Neil gets a bump. It's fair to say he looks better than he did six months ago in almost all respects.
17. Josh Byrne - Padres (7)
The previous ranking was based largely on the highly rated Padres farm system, which I'm less bullish on at present, and which I may have been giving him too much credit for in the first place. Some his trades while with AZ actually look pretty bad, at least in hindsight.
18. Jeff Luhnow - Astors (15)
19. Doug Melvin - Brewers (13)
20. Ben Cherington - Red Sox (19)
21. Kevin Towers - Dbacks (16)
22. Chris Antonetti - Indians (26)
23. Michael Hill - Marlins (27)
24. Dan O'Dowd - Rockies (28)
25. Rick Hahn - White Sox (25)
26. Dayton Moore - Royals (20)
It's fair to say I was convinced to bump Moore down based on conversation surrounding the previous post and he's down little since to give me second thoughts.
27. Jack Zduriencik - Mariners (24)
28. Jerry DiPoto - Angels (18)
Most of the notable moves have been win now trades and free agent signings that may have to some degree 'come from above.' But frankly I simply had a hard time coming up with a significant transaction I've liked during his first year and a half on the job. I'd be curious if I'm overlooking anything?
29. Ruben Amaro, Jr - Phills (29)
30. Ned Colletti - Dodgers (30)