English manager’s debut season stateside has been stunning. San Diego Wave FC are in their first season, have five games left to play in the regular season, and sit in 2nd place in the standings, level on points with table-toppers Portland Thorns. Go ahead and re-read that sentence. It’s a terrific start, and while many, many people are contributing to this “pretty easily best-ever expansion season in NWSL history” at Wave FC, there’s someone who is clearly doing a lot of the work to set them off on the right foot. That person is head coach Casey Stoney. And she…