The reason the USAF can’t rid of the A-10 is simple: They own the fixed wing close air support role. The Army is not allowed to have its own fixed wing close support aircraft.
So, if the USAF gets rid of the A-10 they have to develop a replacement. This would cut into their budget for really zoomie things. Of they have to turn the role over to the Army which they won’t do.
I can easily imagine a replacement for the A-10. An aircraft capable of deploying large numbers of small guided bombs might be a good replacement. But the ordnance and the aircraft would take money away from the things the USAF really likes - fighters.
The Army is not allowed to have its own fixed wing close support aircraft.
Exactly why they should transfer the plane to the Army and Marine Corps. Let them get some pilots trained up. And let them come from the ranks of the Infantry.
The AF can say Goodbye to the aircraft. And the Grunts will know that the folks flying them used to be one of them.
Read up on the A 10 desert storm/shield. The milleys tried to get rid of it then but it was so versatile and effective
Many roles.
Not just fighters, but single seat fighters. The USAF is still smarting because the top Vietnam War (6 kills) air ace was a WSO. Capt Charles DeBellevue