Would you fire the Nationals manager for benching Adam Dunn to many times this season?

I think Riggleman has done a pretty good job with the Nats this year. It sucks to see Dunn pulled out in late innings for a defensive replacement or miss games altogether because he has such great power. I don't watch the Nationals day in and day out so I can't say I know how many games might have been won or lost based on Dunn's defense at first. I do think if Riggleman is fired it will not be because of benching Dunn. He might need to be let go for other reasons, but I wouldn't say that is one of them. Would you rather Manny Acta stayed on as manager?