Here's the problem with having a ranked team, there needs to be a huge level of organization, each of the players needs to be around the same level of play, and the people within the team need to be able to devote a fair bit of their time for this to be even moderately successful. None of this "I can only play on the weekends" or "I don't feel like playing" stuff can happen.
Ranked teams take dedication. Without it, consider the team Bronze before they've even begun.