Whatever you think of him as a booker, that Vince McMahon had a hand in creating some of wrestling's biggest megastars is undeniable. Sure, WWE's star making machine isn't as efficient as it used to be, but they've struck gold plenty of times throughout Vince's 35 years in charge.
Hulk Hogan was the perfect, larger than life superhero for the 1980s. Steve Austin capitalised on Generation X's disenfranchisement and distrust of authority to become the Attitude Era's biggest star. Even the oft-maligned John Cena became a transcendent star in his own right, anchoring the company's main event for over a decade.
WWE's track record is far from immaculate, though. For every main event success story, there are at least two or three spectacular flops, and while failure comes in many forms, Vince's propensity to push wrestlers far beyond their capabilities is one of the most common reasons.
Presence, charisma, a good look, in-ring ability: it takes a near flawless skillset to succeed in this role, and many have been found wanting. It's not their fault, and the level of disdain they receive is often unwarranted - but that's what happens when the boss throws you in at the deep end.