We can agree to disagree. But to answer your question the energy level and intensity of being in a game is much more intense than throwing in the bullpen, mentally for sure but physically as well... there is a reason why it isn't done often... Think it through a little, if such a thing was no big deal, we'd see it all the time. Seriously, who would you rather have pitching in a tight spot in the 7th inning, Capuano or Brian Shouse? *edited for spelling