Some of Warren's problems come when he falls behind in the count. Prior to Saturday's start against Toledo, when he is ahead in the count he holds batters to a .143 Batting Average Against but when he is behind in the count it jumps up to .375.
"I think that's just baseball. When you get behind in the count guys are going to sit on their pitch," Warren said before Saturday's start. "Walks have been an issue for me so far. That's why for me I just have to attack hitters and not get into hitters counts. I have to get into my counts and it's kind of been a big thing for me."
"It's just one of those things where I just try to work both sides of the plate," Warren said. "My strength has been my fastball command so if I have that then it's going to be a good day. I've been going away from my mechanics a little bit but I feel like they are coming back."
Warren knows what it is going to take for him to get on track. He is working on different things to improve his game every day.
"I'm still on the curveball which has been a big working point. My changeup and slider are getting better," Warren said. "Mechanically, I think I've been falling off [the pitching mound] too much and just staying on balance is big for me."
Warren has always had great stuff and, over his career, it is progressing getting better. His fastballs have always been his key but it is the offspeed pitches that needed the most work.
"My changeup has improved big-time and I have more confidence in that," Warren said. "As of recently, my slider has tightened up more and become harder so that's big for me. As far as mental approach, I've learned that you have to attack hitters and learn to throw strikes in certain counts."
Throwing strikes is important for any pitcher and, for Warren, he has the luxury of being able to pick up tips on that from his teammate David Phelps.
Phelps is known for attacking the hitting zone and Warren learns from watching his starts throughout the season.
"He gives me a good read. We're always talking about hitters and how to pitch them so watching him and then pitching the next day is big for me," Warren said.
Warren is considered one of the Yankees "second tier prospects" but the hype that comes with that doesn't faze him at all.
"At this level it's not really a competition between us," Warren said. "It's more about pitching to our potential. It may drive us a little bit but for us it's about going out there and doing what we can."
Warren's teammates see the motivation that that kind of publicity can bring. Scranton Wilkes-Barre Yankees catcher Jesus Montero is the regular catcher for Warren and he thinks highly of his stuff.
"He throws a lot of strikes," Montero said. "He helps everybody win. He throws really good and every time out he gets a lot better."
Now with some Triple-A experience, Warren can be in New York very soon so he hopes that he can pitch better to get where he wants to be.