What to do with Dez in a dynasty league

I have Dez in a dynasty league. I see young WR such as John Ross and Geronimo Allison on my waiver wire. Is it worth it to drop Dez for a newer younger model at WR OR do I hold him in hopes that he joins a team and learns their system

100% Drop and pick up John Ross. Dez hasnt found a team plus when he does he will have to figure out there system. John Ross has to much value in Dynasty could turn out to be a huge player in the future/This year.