i wouldn't move CJ to be honest with you
go with those guys and go hard at RBs in the draft
if you can move Jeffery for a top 10 RB maybe look to do that but i wouldn't be looking to move off of having the #1 WR and #1 TE
depending on the QBs you think might be available in the draft i might consider combining Newton and Jeffery to grab a top 5 RB if you can do that