The following is an article from WWE.com:

RAW this week brought many bombshells with it when several top WWE
Superstars found themselves changing sides. Triple H is now a
SmackDown! Superstar, as is Rob Van Dam, Rene Dupree, Mark Jindrak,
Theodore Long and Spike Dudley. But it is who is no longer on
SmackDown! that is sending shockwaves throughout the world of sports
entertainment as Paul Heyman is no longer the General Manager of
SmackDown!

After being drafted to RAW, Heyman announced that he would rather not
work at all than work for RAW and subsequently quit his position with
World Wrestling Entertainment. Mr. McMahon announced that the GM
vacancy would be filled by 9 PM ET and all trades between SmackDown!
and RAW would be filled as well. What does this mean for SmackDown!?
Who is the new General Manager? Watch SmackDown! at 8/7 CT on UPN to
find out!