WWE can do all sorts of things as part of the Superstar Shake-Up. This includes breaking up a tag team and stables. That is exactly what happened this year as SaNITy is now without their leader.
SaNITy will have to continue as a twosome now because Eric Young is now a part of the RAW brand. This announcement was made casually as Young appeared in a graphic along with the other Superstars who came to RAW so far during the Shake-Up.
This might be surprising for some, but the former NXT Tag Team Champions were never used properly after their call-up. Now it looks like Killian Dain and Alexander Wolfe will carry on as a tag team while Eric Young will seek his own fortune on RAW.