I think the allure of the Satellite League was the same as Morrison's Pantheon. Readers knew that we were looking at the heavy hitters of the DC Universe. I think a 'mandatory' lineup of at least 7 heroes 'on call', with a roster of a dozen or so, would be awesome. That way the reader would know that even if their favorite hero wasn't in that particular month's adventure, odds are that they'd be in next month's issue.