What’s the best way to prioritize product features?

Jack Dorsey (Co-Founder, CEO at Twitter and Square)
Jack Dorsey: The CEO as Chief Editor – YouTube

There are a million things that we could be doing, but only one or two are important. There’s all these stories from our users, from engineers, from support. We need to choose the one or two (or the intersection of a few) that are really going to drive the success of the product.