If you're a team that can run high safeties while also playing the run well you can beat the Rams. Thing is, not a lot of teams can do both. Bears are a very, very good defense... Comes down to protection and the Rams vs. Chicago was awful. I also agree with their points that more misdirection, jet sweeps, screens, throws outside the numbers (maybe that means more to the TEs, plus a bigger WR like Reynolds), etc. need to be mixed in.
Side note: hasn't PFF grown enough that they can afford to not record these things in some guy's apartment anymore?