Need WR help/advise

I usually use 3 WR (2 WR plus 1 in my flex).

This week I managed to get Murray, so Im starting him on the flex.

I don’t know which WRs to start. I have Edelman, Lockett, Chark, Fitzgerald & Tate.

I love using Edelman but Im not sure which other to choose…

What’s your pick?