Untrustworthy players

The most difficult part for me as a manager is keeping emotions out of my start/sit decisions. I get frustrated by trotting out the same players who have been under performing and yet their rankings don’t seem to get effected. The list below are players I dont trust and who I’m considering replacing them with in my lineup. My reasoning is that if the “stars” aren’t producing I may as well take a chance on someone who has the chance to boom. These are all PPR or .5 PPR leagues. What do you think?" Have I lost my mind?

Emmanuel Sanders - MVS

Miles Sanders - R. Stevenson, Jerry Jeudy, E. Mitchell

Tee Higgins – B. Aiyuk, D. Henderson, E. Moore, Javonte Williams, Hunter Renfrow

Hockenson - Gronkowski

D,K. Metcalf - G.Kittle

R.Wilson - Joe Burrow

Tyler Lockett - M. Gallup, J. Waddle