Zack Wheeler’s next step could be Mets’ staff ace

Zack WheelerWhat if it’s just Zack Wheeler’s turn to be the ace?

Will that suffice in this killer National League East?

We’ve seen stranger occurrences in baseball.

The Mets enjoyed one of their most satisfying victories of this young 2019 season, a 9-0 rout of the rival Phillies at Citi Field that gave Brodie Van Wagenen’s group sole occupancy of first place in their ultra-competitive division. At 13-10, they’ve opened this important homestand with two straight wins over Bryce Harper’s crew, which is threatening to self-destruct à la last year’s pre-Harper Phillies.

Harper, the $330 million man, followed Monday’s two-strikeout, one-ejection effort with two more K’s and a foul out to former…