All This coaching talk is somewhat white noise.
However, to me, the unit that objectively underperformed as the season went on was the oline.
Yes, the lead RB is about as agile as Mr Creosote. Yes th QB holds the ball too long sometimes. yes the C and RG may be below avg.
That said, therr were too many missed blitz pickups, stunt confusion, and holding calls. I mention the holding callas as Green Bay was supposed to be innovative in their techniques to hold and keep it uncalled. This was a major topic after 2014 and 2016 playoffs. Philbin wasn't even there for that, though
The line seems talented enough, but just looked out of sorts too often. Philbin seems to be a McCarthy family member, otherwise I don't see anything he has done since 2011 that warrants retaining him. He has pretty much washed out everywhere