#3. Dolph Ziggler was a last-minute replacement for Kevin Owens
What was very clear from the creative direction of things is that Kevin Owens was set to continue his rivlary against Kofi Kingston for the WWE Championship post-Money in the Bank.
Despite the fact that he lost clean at Money in the Bank, WWE likely would have found a way to fit him in again, with Owens maybe having pinned Kingston in a non-title match. Either way, Kevin Owens' refusal to perform may very well have to do with the fact that Sami Zayn can't perform at the show either.
As a result of this, Dolph Ziggler was called in at the last minute, returning after nearly five months to attack Kingston and force himself into the WWE title picture. Make no mistake about it - Kingston vs Ziggler could very well be the show-stealer of the night if given the right amount of time.