My best trade ever was 2011 giving up Mike Wallace and Michael Vick for BIG Ben and 4 1st rounders(They became Andrew Luck, Coby Fleener, Rueben Randle and Luke Kuechley. It was my 1st trade for a team I took over at the timeAt start of 2014 I traded away Mike Wallace in my 12 team ppr 25 man roster league. It was conditional - if Wallace finished top 12 I got his 2015 1st round rookie pick, otherwise it was his 2015 2nd round rookie pick. The guy lost the 2014 championship so it turned out I traded Mike Wallace for his 2015 2.11 rookie pick. I had my own pick 2.10 already. So with back to back picks, I chose Devin Funchess with my 2.10 and used my Wallace 2.11 on Maxx Williams. Verdict is still out. I wish I had traded Wallace his last year with the Steelers. I drafted him his rookie year as a 4th round rookie pick. I sold a little late.
Eta: I initiated/ made the offer.
So his value once upon a time like Vick was huge,