Knowing when to pivot away from a player is one of the many struggles managers face in fantasy football. Especially in these early weeks of the season when every bad game by one of your drafted players feels like a betrayal. You scream, "You were the chosen one!" after you see Elijah Mitchell scored 4.1 points and will be out for about two months with an MCL sprain.
Making these decisions more difficult is the fact that the waiver wire options aren't that great either -- that's why they're available in the first place.