Pick up Keenum as backup QB to Baker?

12-man PPR (4-pt Pass TD)

My QB is Baker and he’s been very underwhelming this season. I’m looking at rostering a second QB until Baker starts playing as a weekly lock-in QB. Is Case Keenum a good option to pick up until Cleveland can “right the ship”? Other options on the WW are: Brissett, Rudolph, Jones, Dalton, Bridgewater.