Many dashboards are not very useful. They get outdated, have information that is misunderstood, lack good benchmarks or just have the wrong data and thus are not credible.
You need to build a Marketing Executive dashboard as soon as you start investing in Marketing. You get what you measure. Just keep it simple.
It pays off to apply the above principles with iron discipline. I believe it can be the difference between success or failure for a young, fast-growing startup.