Robinhood (RBNHD) names Christine Brown to lead Robinhood Crypto as its chief operating officer, where she'll oversee all of its crypto operations and compliance.She'll also keep her current role of Robinhood Markets vice president of product operations.No doubt, she's tasked with bringing Robinhood crypto's deposit and withdrawal features online and improve its platform reliability during trade surges as the crypto trading app has suffered outages when trading activity spikes.The unit plans to expand its offerings and has more than tripled its team this year, hiring in engineering, security, and compliance.