USAF out of date?

Interesting post from Lawyers, Guns and Money:
http://lefarkins.blogspot.com/2008/10/global-strike.html

I suppose if the Marine Corps and Navy both have fighter and bomber units, would it maybe be worthwhile to subsume the rest of the USAF into Navy, Marine and Army?

And what to do about nukes these days? They are largely defensive weapons (unless the Neoconservative nutjobs get their way and always keep "the nuclear option" on the table whenever a third-world nation doesn't immediately accede to the United States' demands), so is it time we scaled back our delivery options to ICBMs and submarines?