Block's @owenbjennings says they almost killed Cash App in 2015, but @jack personally fought to save it: "There were executives at the company saying: Venmo already has this on lock, this doesn't make any sense, you haven't figured out a path to monetization." "It was Jack, our CEO, who continued to push and invest." "Sarah Friar, our old CFO, actually gave us a deadline where we had to figure out monetization, or else we were going to be shut down."