Notice he said "manually shade your DB's" From what I can gather, using the shading system in the game does not make a difference. At least I have not seen/witnessed it at all. I tell them to shade to the inside and they give up the slant, In and everything else going inside. I tell them to shade outside, the give up the out, the corner and everything else. Now mind you, he still has to be a good CB to make plays on the football, but he should at least be in position to make a tackle and a lot of times they are not. I'm sure the WR's route running also is factored into the equation.