Kenyan Drake or Jamaal Williams (1 Viewer)

So i had Jamaal Williams and he has been pretty consistent with points up until last week.  Kenyan drake is the main rb force for SF now and if chase edmonds comes back im sure he will be still useful. David Johnson has fell off like Frank Gore now. Drake is considered a 3rd string but i think he can earn a spot above David Johnson. Who would you guys choose?

1  ppr league

Roster:

QB Watson, Brissett

RB: McCaffrey,Singletary, J.Williams, J white

WR: Aj Green,K Golladay, C Sutton, ju ju, D.Moore

TE: E.Engram, D.Fells

K:G Zuerlin

I'd stick with Williams. There's a lot more unkown about Drake and his usage in AZ