Forrest Whitley is only 20-years old. Let me repeat this again: Forrest Whitley is only 20-years old. And he’s the top pitching prospect in the Astros‘ farm system, which happens to be one of the most progressive organizations in baseball. That’s not a bad place to be as young pitcher.
Prospects are are almost never a “sure thing”, though. Yes, almost never. But some can achieve it.
That said, I am not ready to declare that Whitley will be a successful major league pitcher. I am confident he will be, but prospects are called prospects for a reason.