Could have a lot to do with Suppan being on the mound. He a guy who pitches to contact, not a big strike out guy. Plus with Suppan going against his old team, Yost may have wanted a solid defense behind him. At this point Hall's bat isn't making up for his play in the field. I'm not sure why, but I really have no problem with this move at all. I was more offended early in the season when Yost sat Hart for two straight days.