All I know about other GMs I learn here at Bucs Dugout. So how the...? What...? But if he...
A cursory glance at their roster indicates Sabean has hit big with a couple pitchers and Posey. And (this year) managed to take the right chances (some might say "got lucky") with a near-career year from Huff at a great price, a huge resurgence from Pat Burrell, and an out-of-nowhere year from Andres Torres. It wasn't quite out of nowhere, because he was good in limited time in 2009.
Obviously hindsight is on my side, but I think those were appropriate gambles for a team with apparently limited internal options.
Throw in a fleecing of the Pirates for an average year from an average 2B, and they cobbled together enough offense to be on the cusp of a World Series berth.
I have no idea about their farm system, but they don't strike me as a team that's being obviously mis-managed. Please correct me. No, really, please. I don't want to think the BD community doesn't know a bad GM when it bashes one. Because that might mean we also don't know a good one when we praise one.