My idea of a AAAA hitter is someone who makes his living feasting on fastballs in the strike zone, which become increasingly rare as you move up. Not that he couldn't have hit his ceiling, but this sign seems the opposite and more unusual.
You'd leave in Pressly? I think that's the only other option, unless Drew Butera can be brought up real quick for emergency bullpen duty. / edit: oops, gil4 scooped me.