Who should I drop? (1 Viewer)

[Freetreethree]

12 Team PPR League.

1 QB, 2 RB, 2 WR, 1 TE, 1 FLEX, 1 DEF, 1 K

My Team

QB: Ryan. Brees

RB: Gurley, Ekeler, David Johnson, Ro Jones, J Kelley

WR: T.Hill, Kupp, R.Woods, R. Anderson

TE: Henry

DEF: Indianapolis 

K: Gould 

Pittsburgh D and TJ Hockinson just came on my waivers. Should I pick them up and if yes, who should I drop? Should I just stick to current team?

Thank you!