Getting a 9 on the wonderlic is extremely bad. Go take an example test and you'll see how bad it is. And yet a guy like this is about to make millions of dollars in a few short years because he won the gene pool lottery.
This will ruffle some feathers, but I think it takes much more effort to develop your thinking/cognitive skills than it does to develop physical skills. Obviously different things come easier for different people. But I do get jealous of some of these guys that are about as dumb as a brick and yet are millionaires because they were blessed with great size and at least average physical skills.