Who founded Coinbase?

Who exactly was the individual or group of individuals behind the establishment of Coinbase? Could you elaborate on their background, perhaps mentioning any notable achievements or experiences that might have contributed to their decision to launch such a groundbreaking cryptocurrency platform? Also, what was the inspiration or motivation behind the creation of Coinbase? Did they identify a specific gap in the market or a need that wasn't being met by existing solutions? Finally, how did they overcome any initial challenges or obstacles in bringing Coinbase to life?