So, I've been looking over some sleeper pitchers, some guys who I have questions on about how flukey they are, and I am trying to analyze their stats. The thing I'm wondering is, how much does a pitcher have over his batted ball statistics. For example, how much does a pitcher control his HR/FB%? I know that a lot of the influence on HR/9 is GB/FB ratio, but does a pitcher have control over his HR/FB as well? If a guy has a really low HR/FB%, say 5%, does this cause concern that he will regress to more like 9-10%. Also, does a pitcher have control over LD%? I know that pitchers can control their GB% and FB%, but what about LD%. If he has a low LD%, does that mean that it will regress, and if he has a high LD%, does that mean it will go back to average?
If you guys know any information, or know some articles where I can read up on it, that'd be great.