You won't know until you try. Heck, could turnout to make a good hunting dog, you never know. Nothing wrong with a mutt, just don't know what your getting and I think you have to set expectations.
We have a mutt (GSP/Springer) and she's a heck of a little bird dog, wouldn't trade her for the world.
Give the dog a chance, put in a little time and you just never know.