This is source I found from another site, main source you can find in last paragraphLynne Sladky/Associated Press
Week 14 Opponent: at Miami Dolphins
Score: Lost 27-20
The New England Patriots came into Week 14 winners of eight straight games. The Pats had won 14 road games in a row—the second-longest such streak in NFL history. New England had a seven-game winning streak against the AFC East, and with a win they would have locked up a ninth straight AFC East title.
Foregone conclusion, right?
The Patriots were beaten with surprising ease Monday night in a game that revealed a number of red flags in advance of next week’s huge matchup with the Pittsburgh Steelers.
New England’s injury-ravaged defense made Jay Cutler look like Joe Montana and tailback Kenyan Drake look like Marshall Faulk, allowing 362 total yards to one of the league’s most inept offenses.
Without Rob Gronkowski on the field, the Patriots offense fell apart. Tom Brady threw two interceptions, New England’s wide receivers didn’t have a catch in the first half, and of New England’s 11 third downs the Pats converted exactly none of them.
Zero. The big doughnut.
Given all the success the Brady/Belichick Patriots have had, the team tends to get the benefit of the doubt when problems arise and injuries strike. With good reason, too—nobody circles the wagons like Darth Hoodie and the Golden Boy.
They’d better get to circling—quickly.
Because the big bad Patriots looked like crud in Miami.
Week 14 Grade: D
Season Grade: A-
This is source I found from another site, main source you can find in last paragraph
Source : http://bleacherreport.com/articles/2748544-nfl-team-grades-for-week-14