I found this link through MLBTR, but SI's Jon Heyman ranks what he believes are the top ten GMs in MLB today.  The full list looks like this:

1. Theo Epstein, BoSox
   
2. Billy Beane, A's
   
3. Dave Dombrowski, Tigers
   
4. Mark Shapiro, Indians
   
5. Brian Cashman, Yankees
   
6. Pat Gillick, Phillies
   
7. Josh Byrnes, Diamondbacks
   
8. Omar Minaya, Mets
   
9. Dan O'Dowd, Rockies
   

Now, some of these picks I agree with (Epstein, Dombrowski, Shapiro, and to a degree Minaya).  But putting Kenny Williams on the list boggles me.  The best thing that Heyman can say for Williams is that he was at the helm for the first White Sox championship team in decades, but then goes on to concede that a lot of Williams's recent moves have done more harm than good.  Heyman doesn't mention any of the numerous bad trades Williams has made or the fumbles he made during the offseason (such as letting Torii Hunter slip through his fingers).  If I were making a list of the ten worst GMs in baseball today, well, then  I'd feel compelled to include Williams.

But this is not a diary entry solely dedicated to basing Kenny Williams (fun as that activity is).  Other points worth noting from my perspective:

I'm not sure just how high I'd rank Brian Cashman solely because he so consistently overpays for FA's that end up redefining the term "horrible."  

I'd rank Towers way higher than 10th, and certainly not in a tie with Williams--that's just an insult to Towers.  Some say Towers may be one of the best GMs in baseball today, if not the best.

One of the warrants Heyman gives for ranking the Diamondback's Byrnes so high is the Haren trade.  I'm willing to see this one pan out, but the D-Backs took a huge risk with that trade--they completely gutted their vaunted farm system for the guy.  Heyman seems to like risk-taking GMs, but right now, I'm still neutral at best on the Haren trade.

It'll be interesting to see how Michael Hill does at the Marlins under the thumb of the cheapest franchise owner in MLB today.

Here's the link: http://sportsillustrated.cnn.com/2008/writers/jon_heyman/02/18/heyman.bestGMs/index.html