As someone who has worked alongside visionary entrepreneurs such as Peter Thiel at PayPal, Reid Hoffman at LinkedIn and Jack Dorsey at Square, Keith Rabois has learned something about innovation: It usually doesn't come from the rank and file.
"Innovation is top down, not bottom up," says Rabois, who also points out that the process "is driven by a specific idea" coming from the C-suite.
"It's not like you do all these experiments and collect all this data and then you get something innovative," he says.
Of course, a great idea must be followed by great execution. Strong leaders can organize a company around new ideas and will a product into existence, Rabois says.
How do you get reusable rockets and mass-market electric cars?
"Think Elon Musk," he says.
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