I hope this doesn't come across the wrong way. If you have pitched in college, then you probably know what it takes to get there. You got to have a good bit of latent talent, a little bit of good coaching and a chance to show what you've got. And you have to want it. And you can't make yourself want it.
As a father, you've already supplied the biggest part of the determining factor......you've donated your genetic code. The last fifteen years you've spent developing your son's personality for better or worse or some combination of both. By the time he reaches high school, his will is stronger than anything a father can muster up. He's either going to want to do it or not.
You can micro manage the next three years if you choose but I don't think the human mind of a father is capable of detecting and reasoning through all the variables that makes up a high school experience. What I mean to say is, when you look back let's say six or seven years from now, you are going to wonder why you spent so much time contemplating how to control the outcomes.
Therefore, I would not be influenced by anyone suggesting that your son is a major league prospect, or college material or any other such predictions. Tomorrow is more important than next year or the year after. Do what is right for your son tomorrow and let the rest develop. That is the way it is going to play out anyway. I would develop a few general guidelines. Make choices based on them. Here are some examples my kids would recognize:
Our family name is to be protected. We are proud of who we are. We will do nothing to embarrass our family.
We are rock solid in what we believe and we will stand up for the things that are right.
We start something; we finish it.
We are self reliant but we believe that ultimately God is in control.
With that last one in mind.....I was able to have a working relationship with my son's high school coach who was the biggest sob this side of the Mississippi.