Stuart Butterfield, the CEO of Slack, has just begun his parental leave, and is also stepping back from his role leading the company he cofounded in 2009. Host Christine Lagorio-Chafkin asked him to look back at his time as CEO of Slack, to what worked really well, and what he knows best. Turns out, one of the things that helped the team at Slack during its years of hyper-fast growth was fostering a culture where debate and disagreement were welcome. Butterfield, himself, had his mind changed many times, he admits.