Leader Stagger afflict ability would rock!

I think that sounds cool, leader abilities are becoming more interactive now, I don't see why putting stagger in there is a bad idea. I think it would have to be under specific conditions though, not just blind chance. Blind chance would remove the strategy behind stagger and lead to people just trying to speed up their teams and hoping to stagger before the enemy (like Zader + TFP), but if it required a little bit of set up it would be great, effective, and able to stop speed ruling everything.