"Something is wrong."
Yes. BB is faced with rebuilding a team that doesn't have the single greatest NFL player of all time. The guy who elevated everyone on the field, and in the booth, and on the sideline.
This is unprecedented. It has never happened. Montana to Young is a pale shadow in comparison. We're talking the departure of the player that is the exception to ALL the rules. Brady is not up there with Russel, Orr, and Williams. He is an amalgamation of all three - plus Bird. Losing that is not a meh situation.
Solid #1's, Tier 2 players that are more like 1-A's, flexible O-lineman that are good at two spots, insanely fluid offensive game plans that worked and therefore allowed for similar fluidity in the defensive game plans. Take flyer on some FA's - the core is established and productive.
All that is gone. BB has to make a huge change in philosophy now, and it will not happen overnight. Last season was a pass. This season is to figure out the identity and to start building the new core. Next season, by week 5, we should see a return to the success. I still expect to see players that can handle multiple positions - but now more like 1.5 rather than 2 or 3. We're talking a complete reinvention of the team.
BB was smart enough to see success in Brady (not to the level he got - no one saw that coming) while 6 complete busts went before him. He's smart enough to reinvent the Patriots.