Pinch Hitting?

My team doesn't seem to pinch hit very often. I have guys designated to pinch hit, but they rarely see any AB's.
How can I get them to pinch hit more often?
How can I get them to pinch hit more often?
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http://forum-365.strat-o-matic.com/archivesn/viewtopic.php?f=12&t=501178