Most pitchers throw different pitches out of different "slots." Wise throws both his change up as well as his fastball out of the same slot, or arm angle and a hitter has no way of tipping off the pitch. It's not important at all how fast the fastball is, the important thing is the difference in speeds. A 15-20 mph difference has the same effect of a 100mph fastball and an 85 mph change, versus a 85 mph fastball and a 70 mph change. What you said. Whole thing is that he doesn't tip anything. Clearly, there are guys in AA that have 'stuff' as good as Wise. What seems to work for him is not tipping and very, very good control. I think it's crazy, but seems to work.