Since you've said you have faith in the MD he is seeing, the next step is to be sure you get CASon referred to a PT that understands young athletes, particularly throwers. Your understanding and communication between the MD and the PT is critical. I'd even suggest you set up a notebook where you can record questions you want to ask and keep track of information you need to share with one or the other. You may well find that going through this turns out to be a plus in some unexpected ways. 4thGen became much more committed and disciplined in his training habits after working with a PT because of an imbalance in his shoulder.
Congratulations on making it to the championship game! Interesting about a hard thrower with a slider at 14. I just have not seen a 14 year old catcher that can handle that.
My kids lost in the Semi's last weekend in a Triple Crown event. 4thGen took the loss. He went 4 innings, (65 pitches - too many for this time of year), 3 runs, none earned. I was out of town, but he said he felt pretty good, just out of gas at the end of the outing.
This week 4thGen has started long tossing and running a couple of days a week with the pitchers and catchers from his HS team. He is ahead of most of the kids right now with his conditioning, but it's a long way to May.
Please update us on CASon's progress and I'll let you know what is going on here in AZ.