Derailleur rubbing cassette :((
Got a rear derailleur problem. It's a 9sp Campy Veloce on an '04 Bianchi Veloce. Up until recently everything was smooth, two seasons of heavy wintery Chicago traffic but after a couple significant potholes (battling through the polar vortex) my rear derailleur got loose and is now rubbing against the cassette at every gearing. I've done all the basic searches, adjust chain lengths (although was fine before the incident), checked derailleur alignment (although from the picture it doesn't seem bent?), adjusted various screw high low and tension, but no fix. When it sits there w/ no cable tension, it's as if it naturally pulls into the cassette too much? Did I break something? aka can I fix it? Thanks in advance.