Burnes has the repertoire to be a top of the rotation arm. I think last year was a mix of getting unlucky, but also getting shaky on the mental side of things when every mistake was hit 400 feet. He still had elite strikeout numbers and threw some pretty nasty pitches. Didn’t he strike out the first 8 or 9 batters of a game last season even though he only had 4 starts? He has the stuff. I too believe that our success this season on the pitching front will come down to Hader (obviously), Burnes, and Peralta. One thing Burnes specifically pointed to in an interview is his FB/slider sorta blended together too much. His FB has natural cutting action on it. And then he throws his slider so darn hard, it easy to see where the pitches blended together too much. Also I believe location was a big problem. Usually you can get away with poor location when your stuff is that nasty, but with the pitches blending clearly that didn't work out. Also a reminder his first 4 starts before being removed from the rotation were against Cards twice, Dodgers, Cubs. All 3 teams were hitting ridiculous the first month of the season. In relief, he had some good some bad results before getting sent down. It sounded from his interview that they made a measurable change to his arsenal, though I didn't see exactly what. I would think a fairly easy change might be working in a 2 seam or sinker to go with the FB/slider. Better would be a vastly improved changeup, but regardless I would be shocked if he didn't do something measurable to keep his 2 best pitches from blending together so much.