Quote Originally Posted by Penta View Post
Just figured I'd poke at this one - there's actually a rule somewhere in the US Code saying that you have to have been off active duty for 10 years before you can become SECDEF.

No idea how reserve service is counted.
Not only that, but I don't think we'll ever see a retired flag officer as SECDEF. It just raises too many hackles in Congress about civilian control of the military.