Dynamic TopN or Amount and Column Filtering

I have a situation where I have a revenue value for multiple departments (or service areas).  Rather than create a separate tab for each department, I thought it would be better to have a dynamic report that would let you select departments.  

We might want to see the top 10 items by value for some departments and any items over a certain amount for others.  The information will also be filtered by date (I mention that as that caused some issues when I was messing around with the TOPN function).

As an example the columns and the items I'd like to see are:

Dept 1 Revenue - Top 10 Items

Dept 2 Revenue - Top 10 Items

Dept 3 Revenue - >=15000

Dept 4 Revenue - >= 20000

etc.

There are around 9 departments.

The result would be a table that looked like:

Customer Name, Work Description, Work Date, Dept 1 Revenue

Then when a slicer is selected, it would change to

Customer Name, Work Description, Work Date, Dept 3 Revenue

Where for the first one, it's showing the top ten entries by value for department 1 and the second is showing anything over 15000.

I hope that makse sense. Any thoughts greatly appreciated.

Many thanks.