Regarding Felix, I agree that Felix had control issues with his 2 seamer, and that led to Felix getting less called strikes on it. Further, I agree that Felix needs to figure out a way to control the 2 seamer better, and possibly have a tame version of the 2 seamer.
Where I disagree is that Felix now must become a pitcher - like Kluber, Maddox, Moyer, and even this Honeywell... Felix needs to develop nuances in his pitches, and use them to help set up hitters. For the past couple years we have seen Felix get into battles with players where the batter gets 8, 10 and even 12 pitches into the at bat... you hardly ever saw Maddox, Moyer or other pitchers get into that because they would have pitches that broke just a little bit more or that were just different enough to get a ball in play weakly hit.
It is time for Felix to really adjust to the league... and thus be able to dominate again.