Randomly, nice nick. The Culture reference made me smile.
Doing that (Taking CAS responsibilities from the USAF) is actually a wonderful idea. One of the reasons the F35 is such a cluster f is due to the Marines requiring it to more or less be a Harrier replacement. The Marines use the harriers primarily for CAS and I've targeted for them as well in Iraq when I was there ~2003-2004 during the big Fallujah offensive.