While holds are even tougher to predict than saves, the players we'll highlight today include some elite setup men to target off the waiver wire in Week 21. One-inning middle relievers are the constant sources for holds and specialists can manage to secure a hold even with one out. However, while specialists can get many holds, their fantasy value is limited to how effective they are in their specific role. Long relievers are not a strong source of holds, they are often used in emergency or m[...]