People love to bring up that 2010 team that went in to win in NY after firing Phillips but we all know that team had way more talent than their record suggested. They lost a bunch of close games that they bumbled through with mistakes despite usually outgaining the opponent.
Offensively we had prime Witten, Miles Austin for one of his 1,000 yard seasons, rookie Dez, Barber, Felix, and a bunch of overpaid but still at least average starting OL.
The Giants offense at this point is basically nothing but backup/replacement level players, not to mention they are down their best LB and CB.
Their defense/DL will still pose problems in a cold weather game but their offense is just too bad to win unless they are gifted points through penalties, turnovers, or blown assignments.