So, Power Girl was the leader of the new JSA, except that actually she was insecure about the role and sort of ceded it to the Jay and Alan and now Magog is taking over. And Dinah was the leader of the JSA, except she was basically incompetent, being undermined by the Trinity, and then disbanded, and Hal is taking over. And Cassie was the leader of the Titans, except she's nervous and insecure and so Beast Boy's going to take the reins.
Now, I'm not saying there's a pattern, here, but I think there just might be a pattern, here.