Welcome to your most recent Patriots finding bushleague ways to gain a competitive advantage over the opponent. I don't know how this could possibly be legal in the NFL for a team to hire a coach who was the former Broncos coach a week before they play them in the playoffs. To me it smells fishy.
McDaniels was the Rams offensive coordinator this year, and it's not like they fired him, the granted him the release knowing he would go to the Patriots. This is collusion at it's finest.
I don't know how the NFL allowed this to happen and if this happened to the Steelers, Goodell probably would have banned the team from the NFL next season and fined James Harrison 200K.
Congrats *Patriots* you found another way to beat the system. At least McDaniels didn't draft Tebow or anything like that.