It wouldn't surprise me in the least if Belicheat really doesn't know. The guy could have been sent by Adams. He is the guy who can use the information. It would be completely impossible for Belicheat to interpret signals 40 yards across the field anyhow. But a pair of binoculars from Adams spot and he could be relaying coverages to the OC or Belicheat who gives heads up to Brady. Looks like Cover Two cloud. Easily.
IMO - Belicheat knows everything!! No question. He called the Code Red.