But it can be more difficult to gauge. Still, there are benchmarks. A radar gun on the market times the speed at which a pitch arrives at the plate, as well as the pace at which a ball moves after it is struck. In that context, Anaheim's Mo Vaughn is looked at as something of a Paul Bunyan. He was clocked not long ago sending a 95-mph pitch past the infield at 103 mph, which is not something you want to be in the way of.
Pitchers fit a slot that's more easily marked.
For the most part, either they can throw hard, or they can't. No one seems too sure why, historically, lefties have been able to get away with less heat than right-handers, although Lubratich has an idea. You'll notice that effective left-hand starters, almost all have solid changeups. He threw hard sinker, hard sinker, hard sinker. And he threw that pitch in the 90s.