Marshawn Lynch, Devante Parker and CJ Anderson for Julio and Crowell

Do you think it would benefit me if I traded away Lynch, Parker and CJ for Julio and Crowell in a PPR format. My other RBs are LeSean McCoy, Chris Carson and Gio Benard. My other WRs are Larry Fitz, Watkins, TY Hilton and JJ Nelson.

Should I do the trade??