WWE Ruthless Aggression Era 2000s-2010

Following WCW dissolving, Vince McMahon appeared on Raw, stating that the next big star would have to have some Ruthless Aggression...  Three days later, on SmackDown, Kurt Angle called anyone out from backstage who wanted to face him. Out comes young upstart John Cena, who made a lasting impression on his TV debut. After the match backstage, Cena was congratulated by The Undertaker!  

What does this all mean...?  WWE's Ruthless Aggression Era created today's BIGGEST STARS!