On sliders, put User reaction time on 93, and interceptions at 65. Put CPU pass accuracy at 13. The robo-QB's will starts missing throws but will still complete 50-70%. That you can live with. When Logan Thomas (57 overall) goes 26-26 for 400 yards against my D, you can surmise that the game is garbage out of the box.
On a related note I recommend hiking User run blocking to 65-75. If you dont your guys wont get any kind of a push like real life. It doesn't help that the CPU knows your plays before you start. It rips the psychology right out of the game. Huge difference between playing football and playing madden.