Mixon is worth more than Kelce, but Jones is worth much more than Carson. Not a fan of the 1st trade. The second trade would be better if the 2020 1st was early and the 2021 1st was also in 2020. I'd stay put for now.
Green and Landry have more or less the same value. This comes down to Mixon and the 1.07 for Zeke. Probably not enough right now, but I also don't think I'd pay anything more than that if I'm giving up Mixon.