look at RM credentials and you'll see he's been a dline coach for most of his career, he was promoted by lovie only because he was forced to hand over defensive play calling duties and demote babich the DC at the time. Even while promoted he still worked with the dline more than anything else, he just had a title of DC, the defense rarely adjusted and why did they need to, everyone was playing at a such a high level. The bears are one of a few teams that rarely got hit by the injury bug on the defensive line which was cog in this defense. Angelo's draft ineptness coupled with multiple injuries on the dline and multiple LB injuries, what could emery do with minimal cap space? what could tucker do? you can't stop the run with 3rd stringers, little pass rush and rookie LB's who are not ready. The safeties were asked to do more in run stopping and coverage, the result was they crumbled under the pressure.