I think the baseball industry really needs to take a long hard look at how the training and development of pitchers has evolved.
Industry-wide there's been a gradual but long trend of asking less and less, with the hope of avoiding injury. Pitchers throw fewer and fewer pitches, over fewer and fewer innings. This is even more pronounced in the minors where young hurlers are to the point of never being asked to do even half what used to be commonplace.
And it seems to me all this has accomplished is even MORE injuries. Quite honestly, I'm not surprised.
I cant think of any other athletic activity in which the idea of enhancing endurance is thought to be the result of doing the activity less and less.