On O Line, I would trade Collins but it would 1) need to be for significant value and 2) it would be because I think McGovern is ready to go.
Looney's versatility is extremely valuable so wouldn't trade him BUT this FO loves to pat themselves on the back, so if they think Adam Redmond is THAT DUDE , maybe they feel confident in moving Looney for value.
D Line. Taco? Sure but it would be them admitting they messed up, and they don't really do that. Tyrone Crawford? Yes please. I doubt they find anyone willing to take on his contract though. Maliek Collins? Most of us think he's about to play lights out in his contract year. Why would we not want to get a great year out of him and a 2021 3rd round compensatory for our trouble? If a deal beats that perceived value then sure. One of the young guys like Jelks or Jackson? No problem at all getting something for them versus cutting a talented player. Hill isn't going anywhere. Armstrong? Again, if someone is willing to give up solid value than maybe. We'd be passing up benefitting from 3 more years of a very affordable pass rusher. Quinn is a 1-year rental and Gregory is a literal wildcard.