Cousins/Darnold/Bridgewater to replace Tannehill?

Have Tannehill and Trey Lance. I feel like I want to hold Lance as my late season cheat code.
who should I pick up: Cousins or Darnold or Bridgewater

or should I just keep Tannehill and hope he turns it around?

(5 pt Pass TD, 0.1 points per completion)