There are a lot of suggestions for the UCL tear problem like different mechanics, specific strength, pitch counts but I wonder if that even makes a difference.
For example the band exercises: I think it is good to do them and they actually helped to reduce shoulder injuries but there aren't just many muscles on the inside of the elbow. That means all that arm strengthening with bands, long toss weighted balls... Does help protecting the shoulder but the elbow is still a weak spot. I would still do them to at least keep the shoulder healthy but it won't help the elbow.
Different mechanics are a nice idea but to throw hard you need to externally rotate the upper arm. That external rotation means that especially if the arm is bent at 90 degrees which it is when throwing that the force goes through the side of the elbow. The elbow however is made to extend and bend and not for lateral shear forces, there are just no muscles (except those tiny pronator flexor muscles) who could absorb that stress because the elbow is not created for it.
However that external rotation is needed to throw hard, so probably throwing hard means injuries.
So is the UCL injury a natural consequence from hard throwing unless you are lucky? Or is there really a way?