Darvish saw a big jump in his spin rate a few years back after looking like a journeyman pitcher. Then, suddenly, he became one of the better pitchers in all of baseball. deGrom has been consistent since Frank Viola talked up deGrom when he was in the minors. Viola said deGrom brings the heat every pitch, but the biggest difference between deGrom and most pitchers is his ability to control where he wants to throw the ball. Viola said he's the closest thing to Greg Maddox and Tom Glavine when it comes to pinpointing his pitches' location. This goes back to 2012 when deGrom played for single-A Savannah.
There is little evidence to show deGrom is doctoring the ball. However, his spin rate is average, and he's been consistent in all other areas of his pitching. deGrom is being grouped in with pitchers who are flamethrowers but can't pitch. Those guys need the advantage to stay in the league. They will do whatever it takes. Pillar will tell you about that.