Henry is obviously one of the best RBs, even for fantasy in 2021, but he is 27 and in dynasty leagues that matters. If you're a rebuilding team, or a middle of the league team, you don't trade for Henry. So, that leaves you with contending teams only. Even those teams won't give up the farm because they are top teams for a reason, but you can get late 1sts and future 1sts for Henry and / or some young WR talent. I don't see contending teams trading young RB guys like Dobbins and Akers, because if they are an aging team otherwise, they don't want to lose those assets. They know the floor could cave in at any time, but not likely in 2021.