#3. To set up a feud against The New Day

The Bar vs The New Day is almost a no-brainer at this point, especially given that they're on the same brands. As we mentioned, we definitely don't expect The Bar nor The New Day to shift brands over to RAW.
This may be the set-up for a rivalry between the two teams - something that they haven't fully been able to do. Sure, The Bar did beat The New Day for their last SmackDown Tag Title win at SmackDown 1000, but if you think about it, that really wans't as much of a storyline.
Now, it gives Xavier Woods and Big E something to do on the side while Kofi Kingston tears it up as WWE champion. Not every tag team feud needs to be for the title and it would be interesting to see a new team challenge The Usos.