I need waiver wire help

I’m in a 10 team superflex full PPR league. I’ll start off by showing you my current roster.

QB: Matt Ryan
RB: Dalvin Cook
RB: Aaron Jones
WR: Davante Adams
WR: Tyler Lockett
TE: Darren Waller
FLEX: Josh Allen
DST: Ravens (week 1 and 2 stream only, dropping them for Cowboys DST hopefully)
K: Jake Elliott
Damien Williams
O.J. Howard
Cam Newton
Duke Johnson
Tyrell Williams
Jamison Crowder
Melvin Gordon

Question 1- Larry Fitzgerald and John Brown are for some reason still available in my league. Should I drop O.J. Howard and Jamison Crowder to get Fitzgerald and Brown or should I hold on to one or both? Howard hasn’t done shit the first two weeks and Crowder now has a third string QB in Luke Falk throwing him the ball for who knows how long since Sam Darnold is out with mono and Trevor Siemian is out for the season with his ankle injury from last night.

Question 2- Should I drop Cam Newton or should I wait and see what happens with him in the coming weeks? If you think I should drop him let me know who you would drop him for because I’m trying to figure out whether it would be better to pick up Mason Rudolph or Teddy Bridgewater or Daniel Jones or Jacoby Brissett. Since I’m in a superflex league there’s obviously not as many free agent options at QB as there would be in a 1 QB league.