Why not? If it is, in fact, possible to have an "edge" in picking winners, then how is it not, in fact, logically possible to have the opposite status? Suppose we have someone who has some sort of system that lends itself to picking directly opposite to someone who has a system that gives an "edge". If one exists why not the other? Unless, of course, NEITHER, in fact, exists over the LONG haul.
Honestly, I may be missing something here. I am not the greatest of mathematicians.