All development today is based on power. Throw as fast as you can for as long as you can. If that's 5 innings 55% of your starts so be it. Less then 5 in 35% no problem we will pretend your an innings eater when you go 6.
Hitters have to be power hitters no matter their natural swing/ability. Making contact out. Launch angle and pull everything in. Witness TC trying to tweak Martin into Mickey Mantle. It's idiotic.