When there was a left handed pull hitter at at the plate, the third baseman would move to where the shortstop was, the shortstop would move to second base, and the second baseman would be on shallow right field. Third base was left completely undefended. I always wondered why hitters couldn’t just practice a late swing and send a chopper down the third base line …

The new rule says there has to be two infielders on either side of of second base when the pitcher delivers They still shift just not as much