Bryce Harper is tied for the best WAR in baseball. Even with the -.8 positional adjustment
Span has been exactly what Rizzo thought he would be.
Werth is the only one that doesn’t pass the eye test. He has a large negative Positional and Fielding adjustment. Bat alone places him behind Harper and Desmond.
Espinosa’s glove and position saves him from being truly awful
Zimmerman has been worse than replacement.