[paintmered]

I absolutely think the NFL should be all over this during training campus. Future heat related deaths could be prevented. There's been too many already.

As for monitoring mechanics, C/A GPS isn't accurate enough to monitor movements in inches, let alone a few feet (it's generally accurate to within 50 feet). It's also updated around 1Hz which is way too slow to be of use (1-3 data points for each pitch delivery). It's useful to measure distance traveled and velocities, but it's going to take something like a movie special effects suit to monitor mechanics of a pitcher.