Wow this is pretty helpful information.

Great info! I wonder to what extent placement of "soft" pitches is dependent on the chief offspeed offerings of a given staff. For example, a staff dominated by change-up specialists versus guys like Liriano who go to their slider more often. Granted, maybe there's enough variation within staffs that one team's starters can't be distinguished from another solely based on their most common offspeed offerings. Besides, I suppose there are pitchers whose breaking balls don't even fall into the 81-mph "soft range," especially those throwing hard sliders (Liriano?).