Step 5: Ciampa vs. Rollins
At some time, in some place, Tommaso Ciampa could cash in his Money in the Bank contract on Seth Rollins and become Universal Champion.
The next night, Ciampa could bloviate in ways that only he knows how about how he euthanized the Big Dog and then deconstructed the Architect. He and he alone shattered the Shield, something which even Brock Lesnar fell short of doing - because Brock Lesnar isn't the Greatest Sports Entertainer of All Time!
Seth Rollins, enraged, would obviously want his title back. A rematch would be appropriate this time around, so it would happen, and Ciampa would somehow, someway, survive, again.
Unsatisfied with mere victory, Ciampa could show his most vicious side and take Rollins out after the match in a brutal fashion. Roman Reigns could run to the rescue, but it would be too late. Ciampa would wave sadistically from a safe spot far away from the Big Dog's wrath.