After personal experience, I'd advise against this as the drivers will get extremely picky. You need to make sure you install the Quadro drivers first and that the versions are matched. Geforce drivers update more frequently than the Quadros and will mess up the system more often than not.
One thing is that both cards will run with only one set of drivers installed, just that only ones features will be taken advantage of. You can try to setup a dual boot arrangement with one for work and the other for gaming, and this also helps with the other failing, procrastination.
I have since gone to just running a newer Quadro now as being able to run AutoCAD and Revit are more important, and considering how expensive the licences are it's a waste not to optimise them.