I'd have The New Day go on a losing steak. Big E would clearly stop feeling the powa while Xavier and Kofi are content to do their typical routine. I'd have a big spot in one of their matches where Big E does his signature spear through the ropes and he hits Xavier by accident who was standing on the apron playing the trombone. From there we'd see them be out of sync during their promos, Big E's not clapping, dancing, and now it's Woods and Kingston wrestling the matches.
On Raw it's built up that The New Day are making an announcement on Smackdown. They walk out with serious looks on their faces teasing an imminent break up. They would start out with a somber tone before getting back into New Day material talking about "Got EEM! Fooled You!" Big E interrupts and tells them to shut their mouths and asks how they haven't gotten tired of this yet, how embarrassing this has all been, how long they've been doing this. That he's one of the strongest men on the roster, that Xavier is supposed to be a genius, Kofi one of the most versatile but all they do is dance like women to sell shirts.
Xavier says and I'd have it be barely audible "Langston we talked about all this already, not out here, man" Kofi's got his back turned like he's heard all this before and is tired of Big E. Big E addresses Kofi asking "How does your son look at you when all you do is lose and talk about men's butts all day?". Kofi furious rushes Big E, Xavier holds him back. Big E attacks both men from behind, knocking them to the ground, he then picks both men up and delivers the big ending.
He feuds with Kingston having Xavier as his manager. Big E goes over. Then goes on a monster run in the main event.