Buffer has a strong culture of nurturing people into more advanced roles and promoting from within. This is fabulous for the opportunities this affords to their teammates; however, it does lead to a steep learning curve with disciplines like strategy, vision, coaching, and mentorship that aren’t as big a part of an individual contributor role. This article is about the biggest questions Buffer had for Jason Evanish, the Founder of HR start-up Lighthouse, and the answers and ideas he shared with the Buffer team.