I find that the most common task performed on tenants is modification of tenant variables. However, I feel that the UI does not support this task very well.

I find that once I click through on the tenant, my next step is to click on the project in which I wish to set variables for which does not result in the expected action (it takes you to the project instead).

My recommendation is that the tenant variables becomes the landing page for tenants and the project administration for the tenant could become a secondary page (or perhaps it could even be combined into the variables page).