Fling+young wolf+increasing vengeance

If I were to have a young wolf(with no +1/+1 counters on it) and fling it at something that's a 3/3 dealing 1 damage to it, have young wolf come back as a 2/2 and then cast increasing vengeance and fling it at the creature again to kill it? Or am I right that I have to cast increasing vengeance on top of the stack and choose a different target with the copied fling before the first resolves?