The Giants made the playoff last year with an 11-5 record and lost a heart breaker to the Green Bay Packers in the playoffs. The Giants trotted out two entirely different units in 2016. One, an incredible defense that finished 2nd overall in defensive DVOA according to Football Outsiders, and the other, a very below average offense that finished 22nd in offensive DVOA.
We can point the fingers at whoever we want, but looking at the stats, it's hard not to conclude that Eli Manning needs to play better in 2017 for the Giants to make the playoffs again. Manning's 2016 season was easily his worst in 10 years. Pro Football Focus grades him at a -23.4 for the season. That puts him 35th in terms of quarterbacks who played significant minutes. The only quarterback underneath him is Brock Osweiler.
There is hope for the Giants if Manning can turn things around: the offensive line is at least above average and there are more than enough playmakers at receiver (including Odell Beckham Jr; a top 5 talent)
Source: Football Outsiders · Photo Credit: Keystone Press Agency