That is one of the reasons I dont think that Switzerland is ready for the DC title. DC is a team competition, and the Switzerland, even having the best in the world, doesnt have the best team. This should be taken in consideration when every year there is the traditional "OMG, Roger isnt playing the DC 1st round".
Ah but everyone says that Stan is this great #2. James Martin over at tennis.com basically said with Roger and Stan Switzerland should be a favorite for the DC title. Maybe if they had a guaranteed point in doubles, like the USA usually does. But even with that more often than not it would come down to Roger winning both of his singles matches.