Re: Matt Harvey - torn UCL in his elbow
This reminds me:
Why in the world would a team not conduct bio-mechanical testing of all their pitchers? Create a baseline for muscle strength etc., develop a picture of how the players' arm/shoulder/core/whatever recover between starts/appearances. Then test often and look for breakdowns.
Worst case scenario is that you do it and find out that most or all pitching injuries are actually sudden and nearly impossible to see early warning signs of. Best case is that you can see the weakening of a muscle (e.g. slower recovery) in advance of the unusual soreness that comes with an injury.
You could all of this include the technology and people for under $1M and probably much less, which would be paid for with the prevention of a single injury. Either I'm simply an idiot and don't understand why this would work or teams are really just that penny-wise and pound foolish.
Games are won on run differential -- scoring more than your opponent. Runs are runs, scored or prevented they all count the same. Worry about scoring more and allowing fewer, not which positions contribute to which side of the equation or how "consistent" you are at your current level of performance.