of course who a front office signs isn't the whole story; it's also who they don't sign. When was the last free agent that the Spurs signed/traded for that was a bust?
Elson? Butler? Carl Herrera? You don't see the Spurs giving bull contracts to bull overrated players like Bobby Simmons, Dampier, Kenyon Martin, etc.
Who has had better success managing the cap and delivering a winner? Who has limiter their high-risk signings to short term, small contracts better?
The Celtics just won the le after completely re-tooling their roster last summer. But Boston had 15 years worth of lottery picks stocked up for assets to use in those trades.
Even the Lakers, with all the drawing power and money of the LA market, had pretty much surrounded Kobe with bull until a miracle fell in their laps with Gasol.
The FO went after Maggette with everything they had, and it looked like they had a better than average chance. The fact that Golden State overpaid for Maggette doesn't make the Spurs FO overrated. It's further proof that GS's FO is stupid. (This is the same group that signed Troy Murphy, Adonal Foyle, and Mike Dunlevey contracts that will pay a combined 28.8 million this year alone; and just let their best player walk.)
The FO can be accused of many things, but overrated is not one of them.