Ding ding ding........We have a winner. This is exactly how I play. I play default Heisman because I was unaware any of the sliders work on 360. Switch up your defenses. use all of the tools available, and switch up your gameplan based on down and distance. Granted, some QB's will still go robo from time to time i.e. getting the ball off in a millisecond, or worse the superhuman avoid sack at warp speed and throw on the money but, I've still had success. I've been labbing with only top 25 teams and I've had QB's go 5-20. So, it is possible just not easy.
On a side note, which sliders do work on the 360?