One of the most challenging aspects of analytics investigations is the back and forth among product teams. An analyst usually needs to run multiple queries that yield multiple charts to make sense of the numbers. Trying to share findings often involves long email threads, where charts and comments are easily lost, and data teams typically end up revisiting the same points again and again.
And even when information isn't lost, analysts too often have to reproduce earlier investigations just so they can follow the thoughts of their team members. It's a frustrating and inefficient process.