I know he's not going to make the HoF, but i'd argue he's more responsible for the turnaround of the Nats in the last 3 years than anyone.
Aside from Mike Rizzo, the scouting staff, and Dr. Lewis Yocum?
Of players on the field, yeah, Jayson Werth is turning out to be a way better signing than even the biggest Nats fan could have expected after those grim first few months he played for us.