Oh I didn't just mean for NSC, imagine having something that tracks every source, that looks at people like Fourth Official on Twitter and places like Football Rumours to see just how accurate any given source is.
Of course you have the issue you state with deals falling through, but I imagine...
Be quite interesting if there was a way to track people's claims on signings to see how accurate they were. Perhaps how feasible people viewed their tip at the time as well. Then again I'm a data geek.