skynight has the right idea in this case.

As an interrim step, you can create an interface to sit between the Reporter and DataManager to handle business rules, etc. I've had to do a couple of these to handle data between different packaged products in the past.

This is not the best solution -- you would be best served by taking/making the time to finalize the code. Having said that, I will admit to having several bits of code that I have wanted to perfect for a few years now. You never know when you will have the time to do it right, so consider doing it right now.

Good luck!