It's no secret—R.A. Dickey is unlike any pitcher in the major leagues.
That's not an overstatement. Dickey is the only remaining pitcher in the bigs to feature primarily knuckleballs night in and night out. His approach, which consists of knucklers varying in speeds, may be close to a polar opposite of Zack Wheeler's.
Wheeler uses his moving, overpowering fastball—which can touch 97 miles per hour (via Baseball Prospect Nation)—and a 12-6 curve to maneuver through opposing orders. As a traditional pitcher, unlike Dickey, Wheeler will likely face a learning curve upon his anticipated mid-to-early 2013 call-up.
With Johan Santana set to be making $25 million next season and the Mets in full-out salary-slash mode, it wouldn't be outrageous to think Sandy Alderson will shop Santana around the league throughout the year. With Santana potentially sent packing, Dickey would be the undoubted ace of the Mets staff by mid-season.
In 2013, Dickey and Wheeler will probably be pitching back-to-back in the rotation at some point—as the first and fifth starters though, as opposed to first and second, respectively. There may be times where Wheeler will show signs of brilliance, just as it wouldn't be at all surprising to see him struggle.
Dickey on the other hand, plans on being the staff's rock. With none of Wheeler, Jon Niese, Matt Harvey, Dillon Gee or Jenrry Mejia over the age of 25, Dickey must be the rotation's unflappable lead man in 2013.