I'm not prepared to call it stupid stat, probably because I like watching it happen, but I think it may be overrated. I've long been wary of any player who can only perform "in certain situations". As I said earlier, a clean inning is a luxury for a reliever but how often does a reliever other than the closer get to start with nobody on base? A clean inning is a recipe for success while coming into a situation with runners on base is a recipe for failure - and yet we revere the guy who always has to have the clean inning.