Should I trade Kamara or C Brown for Kittle?

10 team ppr. Keeper.

Have kamara, brown, hall, judkins and j Williams at RB.

I have Kincaid at te and looking to upgrade .

Should I trade one of my rbs for Kittle? I don’t want to trade Judkins (as I plan to keep him), but what about the others? Team that has kittle needs an rb and has a good te backup.