Changing card set once picked

I am in a 2014u card set but I have been the only one in the leagues for 4 days now. Is there a way to hop out and use the 2014 set (non "u") so that I can repick and join a league with some folks in it?
Joe
Joe
Community forum
http://forum-365.strat-o-matic.com/community/
http://forum-365.strat-o-matic.com/community/viewtopic.php?f=5&t=639309