Steve Jobs

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Steve Jobs' rise to the top wasn't a straight and easy one. In 1983, Jobs hired John Scully from Pepsi as Apple's CEO. It ended up being one of the worst decisions he ever made. After some major disagreements with Scully, Jobs resigned from Apple and started a new business venture called NeXT.

Later, Apple would acquire NeXT, and Jobs would make his way back into the folds of the company. With Steve's help, Apple became one of the most successful companies of all time.