If we combine
that would mean that the customizable elements (I imagine them as tiles) should perhaps be links to the most used stats rather than the stats themselves. But then again you might want to leave it to the admins to decide what they prefer.
As for your mockup, I’d personally find it too minimalistic although it reflects how I currently use the dashboard, i.e. to hop on to some other admin page. But that is partly due to the absence of
Because the dashboard is mostly just an extra click for me to get to where I want to go, I have actuactually considered adding my most frequently used page to the top of hamburger menu for easy access. Just haven’t gotten down to it yet.
So, my point is: in redesigning the dashboard, perhaps it would make sense to think this together with the admin section of the hamburger menu because if the hamburger menu could at least partly take care of this:
then there might me some more room for all the stats that are si popular here (and, honestly, to me dashboards are about stats and indicators. What you seem to have in mind is more of a control panel to me.)