Better insights, self-service BI, data discovery, "stunning dashboards"- it amazes me sometimes that analytics and BI are often portrayed as an end in themselves.
The only value is if people make and execute the right decisions more effectively and in a timely manner. Which means you need to know why you need to make a decision and what difference you'll make as a result of so doing.
Reminds me of the apocryphal gardner who picks the vegetables out of the ground to see if the roots are OK and then wonders why they die!
Bernard Marr gives practical advice to stop us making a similar error.
Unless the results are presented to the right people at the right time in a meaningful way then the size of the data sets or the sophistication of the analytics tools won’t really matter. You need to make sure the insights gained from your data are used to inform decision making and, ultimately, improve performance. These days there are more interesting ways to present data and exciting tools to help you do it.