Savion Williams vs Tai Felton

10 team 1QB HALF PPR question. I currently have Williams (picked him up off the wire). With Addison out for the first three games and JJettas injured I can’t help but think that Tai Felton could be a valuable pickup. The guy on my squad I’m most compelled to drop is Williams but I’m not sure it’s worth it. Who’s the better prospect? Who has more upside? What would you guys do?