They were 8th in the league in scoring when Brady was on the shelf and McDaniels was forced to work with a QB who hadn't started a game since high school.
in other words, you have no idea what you're talking about.
It astounds me how people overlook the obvious.
Start by asking why BB brought McDaniels back immediately after the Rams season ended. If this guy was such a mediocre OC, then why did BB want him back at the most important time of the year for the team? BOB couldn't handle the few weeks with Penn. State? Guess again.
I love the "X is the worst coordinator, eva" stuff. The team loses, and the OC stinks. The team doesn't break records, and the OC stinks. The team doesn't win the Super Bowl, as it should every year, and the OC stinks. Outcomes have nothing to do with the chess match, personnel, matchups or simple luck. A great OC will get touchdowns every series, and win every game.
As for McDaniels in Denver, I believe the mistake was giving him full control at such a young age. If there was an experienced GM, the Cutler and Marshall garbage would have been less of a burden. They were not his fault, contrary to the belief of some, but they became his problem. Trying to coach and manage that nonsense was too much to ask of a new coach. I would not want to see him in Cleveland solely because that has been the bane of many in the BB tree. He may be a successful head coach one day, but I doubt the Browns are that team. It may well end any chance he has of making that next step.