Trade or stay the course? Evans for ekeler

With Kamara and his injury, plus his bye week coming up, I’m trying to add depth. Just got hit with giving up Evans for ekeler. Not sure I want to go this route, leaves me super thin at wr

Would leave me with:
Kamara
Carson
*Ekeler
Hyde
R freeman
Sanders (dropoable??)

Kupp
Alshon
Curtis Samuel

How many WR Do you start and what’s the scoring format, std, .5 PPR or full PPR?

2wr,half ppr