#3 Freshen up the current group of WWE heels
It is very difficult in modern-day WWE for Superstars to become legitimate heels who the audience dislikes. Even if somebody shows non-stop heel tendencies (say, Samoa Joe or Alexa Bliss), fans can still appreciate how good they are at their job, so they often receive cheers despite being bad guys.
In Sami Zayn’s case, he was very entertaining during his run as a heel from October 2017 to June 2018, but he also had the ability to get fans to boo him no matter who he was up against.
Looking through the WrestleMania 35 card, Randy Orton, Shane McMahon, Daniel Bryan, Samoa Joe, Drew McIntyre, Bobby Lashley and Baron Corbin were the only full-time male heels who competed in matches on the main show.
With the Superstar Shake-Up on the horizon, WWE desperately needs to freshen up the way that the heels are presented, especially on Raw (the McIntyre, Lashley and Corbin alliance went on for far too long), so heel Zayn would be a welcomed addition to either brand.