Well typical of the Red Sox, the only way to make it through their system is to hit. If you can field great, that is nice but you have to hit. If you can hit, they will take just about anything in the field. WMB's current problem...not showing all that much at the plate.
Then again, if the future is WMB and XB, that is going to be one porous left side of the infield. I suspect, that might be the instigation to move WMB to first and eventually XB to 3rd. That of course will mean that WMB is going to have to show the promise he had previously as a power hitter.