Tatis Jr was a throw-in in that deal when it was made. He blew up. No one was talking about how the Padres fleeced the Sox with Tatis Jr when the trade was made.
I personally have low expectations because everyone with value has been traded. Jose maybe has some, but his recent somewhat extended cold streak makes his minimal chances of being traded quite a bit lower. Avi and Jones are hurt. The only guys that have any real value in trade (that the Sox would actually consider trading) are Soria, Avilan and Yolmer. That is it, and those guys aren't bringing back top 100 prospects. Maybe someone is interested in Cedeno, but we aren't getting anything exciting.