Handcuff Strategy

Hey all, wondering what my best path forward is. I’m 5-0.

Starting RB’s (and flex) are: Fournette, Howard and Martin

Starting WR’s are: Jones and Hill

Starting TE - Brate

Bench is - Kelley, Quizz, Eifert, Collins, Funchess and West.

My question is, seeing how I’m in a good spot, do I hold onto a player like Collins and hope he pans out so I can try to trade him or drop Collins and Eifert and add handcuffs that would be huge if an injury happens? Conner and Charles are who I’m thinking of adding (Ivory isn’t available).