They won't last that long, and tbh that's a good thing since it doesn't really help either one of them to be in a tag team. Sandow is a good personality by himself, and Rhodes needs to get back into the IC title picture.
Tyrion, btw, Rhodes will be the bitch of the duo. I think it's already established if you consider how poorly they've been pushing Rhodes lately. Sandow stands out more than Rhodes already (while solo), so it'd make less sense for him to take the losses (never been pinned) or end up taking the blame for failures. Rhodes' character has pretty much already been built to take punishment and get made fun of.
How can that be possible when last Friday Sandrone took 20 chairshots from Kane and Bryan?