Auden Tate. At least one player isn't regressing in this season to forget

[*ochocincos*]

Ross and Tate have both shown (vast) improvement this season. Both are worth seeing more looks in 2020.
Erickson, I think, is definitely replaceable after this season, as both Wilson and Phillips (Hold on for one more day) have proven to be more dynamic in the return game.
Willis is the new Armon Binns. Hyped up entering the season and emerging as a starter but extremely underwhelming in the regular season thus far.
I think it would be wise to get 1-2 WRs in the draft next year, as 2020 looks to have a strong WR class and you can't count on Green and Ross staying healthy. Also on board with a proven vet WR in FA (upper-tier or mid-tier, doesn't matter).