#4 Because of the dissolution of Seth Rollins' stable
Until some time ago, Seth Rollins' faction was the hottest thing in the company. Seth Rollins, The AoP, and Murphy were allied in the same faction and they ruled the roost on RAW with Rollins and Murphy as the reigning tag team champions of RAW.
But now, owing to an injury to one-half of The AoP, the faction is no more. The time was ripe for a heel faction and Paul Heyman and his creative team must have come to the conclusion that the best-case scenario would be to form a brand new group with Zelina Vega in charge.
Whether or not this faction can be just as successful as the one that preceded it remains to be seen, but everyone who is part of the same is immensely talented and can really go the distance. Maybe Garza and Theory could be the heel team that feuds with The Street Profits in addition to the Viking Raiders, for the RAW Tag Team Championships in the months that follow and grow as a tag team unit.