The inside story of how $3 billion Brex went from raising $150 million to slashing staff in just 10 days. Here are the execs who are out, and what's next for the fintech.

· On May 29, Brex, a three-year-old fintech that had skyrocketed to a $3 billion valuation, laid off 62 members, or roughly 17%, of its staff.  It had announced a $150 million fundraise less than two weeks prior.
· Among those cut was Paul-Henri Ferrand, Brex's recently hired COO, along with senior employees on the customer...