Renegades absolutely has ways to fix your leadership.
Each unit, take, for 5 points, a chaos sigil. A unit that has a chaos sigil auto succeeds on the first leadership check it fails each player turn. There are few instances where you will need to take 2 leadership checks in one turn. And it only comes into play if you fail. So if you get shot at, need to make a check and succeed, you're basically fearless in close combat when they charge you.