It was under Russo's writing that Triple H first became a main event player, though it wasn't until a few months later that he became a genuine top guy. Also if Russo's shoot interview (not sure which one, but i think it's the one when he was with Ed Ferrara) is to be believed, he said that it was partly because of Paul Levesque, that he didn't go to the WWE in 2002 and instead signed with TNA.
Triple H and Bradshaw were the guys who were against Russo but unlike Bradshaw who openly and directly expressed his dislike of him Triple H hid like a chicken and told Stephanie to tell her father that Russo is a bad decision and that was enough for McMahon to change his mind. The fact that for over 10 years the word of HHH & Stephanie is enough for him to make some decisions is one of the reasons why the business is so shitty in the last 10 years.
As for the topic, Russo made him 2 time WWE champion, his scripts where he turns on DX, turns heel, delivers the worked shoot "I am the game" promo. It was obviously that Russo decided that it was time for Triple H to join the main event scene and with Undertaker and Austin out of action for the next months it would be easier for him but sadly Russo left in the next months just when he started the Triple H main event heel project.
Like therock11 said, he became a top heel, main eventer under Russo and also a 2 time world champion. This is something most Russo bashers ignore claiming how he held Triple H down wich is bullshit because Russo was the guy who really gave everybody a chance. To be honest, nobody would give a fuck about him in 1999 and 2000 if he has not became over in 1998 as DX leader thanks to Russo writing. Also, Steve Austin refusing to work with him and put him over played also a major part
Funny how most people on here take every opportunity to bash HHH yet whenever there's a goat heel thread the unanimous answer is usually HHH.
Hell, his best years (2000 and first half of 2001) were long before he went public with Steph.
GOAT Heel? He is not even in the category with Mr. McMahon, Ric Flair and Hollywood Hogan and it doesn't matter when he went public, it's about when they started seeing each other and even his best buddy Waltman said that it happened earlier