Everyone says we must be data-driven. I have trouble with that phrase, as discussed before. Too often, we're making decisions based on the data presented...as is. We're not asking the hard questions behind the data.
When I was at Bell Labs, we used to ask, "How much did you pay for that data?" You can get data to say whatever you wanted depending on how it is presented and calculated, on what you show and what you don't.
Before you start making decisions on the data in front of you, ask why it is the way it is, what's driving those numbers, what was the context, the constraints, the demographics, the sample size, the timeframe and frequency, etc.
For instance, a company says it promotes more of its people than its competitors, but perhaps it's 50yrs older? Perhaps its twice as large so the overall numbers are bigger? Perhaps it hasn't in the past 5 yrs but given the number it had the previous 30, the overall number is still big. Perhaps, perhaps - if you don't ask, you won't know and you could make decisions that are yes, based on the data in front of you, but not on the story behind that data.
"Be Data-Discerning, Not Data-Driven"
I propose we start being data-discerning, not data-driven.... you may be surprised at what new insights you discover!