Movie stars still had their place in the new blockbuster era, at least for a period of time, but Jurassic Park cemented the idea that you could have a massively successful movie without any actual movie stars.

FORBES: The Box Office Legacy Of 'Jurassic Park,' 20 Years Later

In the case of managers, umpires and executives, their time period during the Expansion Era will begin in 1973 and go all the way up to present day.

FORBES: A Fond Farewell To The Golden Age Of Managers