Coach May,
That is exactly the point. You have to work on that and pitch your bullpen sessions with a purpose. I see too many guys get in the pen and not have a purpose other than just throwing. I also see guys get in the pen and start throwing 95% from the first pitch. You need to start out about 70% and work up from there as you get loose and heated up. The 90+% effort does not need to start until the sweat breaks out.