#3 Removal of Bryan and Rowan from the Tag Team title picture
Not long ago, Daniel Bryan and Rowan were the SmackDown Tag Team Champions and at least, in my eyes, they can have a great feud with The New Day if they're given the chance to do so. But the fact that they've been pulled out of the Tag Team picture indicates that they're being kept for something else, presumably the Roman Reigns storyline.
So much so that The Revival had to come to SmackDown Live from RAW to feud with The New Day. This leads me to believe that Vince McMahon does not want Daniel Bryan and Erick Rowan anywhere near the tag team title picture.
We know what Vince McMahon essentially thinks of the Tag Team Championships from the fact that he made Seth Rollins and Braun Strowman Champions, essentially burying the entire division. The singles division will always be superior to the tag team one.
Hence, a main event push like Colohue indicated basically means a singles push, in other words.