Oh please.
Let's see Rumsfeld's successes: 1)Captured Bin Laden at Tora Bora. 2) Assured complete defeat of Taliban in Afghanistan so that they wouldn't keep hanging around mucking up the works. 3) Ensured relative security for troops operating in Iraq by aggressively destroying and instilling fear in the radical populations in Iraq. Oh wait, none of those happened.
1) Bin Laden was allowed to escape because we had so few troops on the ground that local warlords were allowed to dictate military strategy. 2) See #1. 3) Too few troops and putting existing troops in a defensive rather than offensive role ensures what is going on in Iraq right now.
When your doctrine is to use underwhelming, rather than overwhelming, force, you will not win wars. It is the same doctrine that lost us Vietnam, and Bush won't let himself become LBJ to Rumsfeld's McNamara.