Flowers, who had a terrible outing in the Giants' season-opening loss to Dallas - and was a glaring disappointment last season as well - was no better Monday night.
Others - Punt coverage, third-down defense (Lions were 6-of-12) and Darian Thompson.
"Obviously, I'm sure they're looking at that game some, and kind of figuring out what we did well, what we didn't do well", Stafford said. Either NYG will fall to 0-3 and the Eagles go to 2-1, or both walk out at 1-2.
MLive: The Giants hosted Detroit just four regular-season games ago.
Heavy's Pick: Lions 27 Giants 24.
Agnew then helped clinch the game for Detroit with his big return with 12:56 left, faking out NY punter Brad Wing on his way to the end zone.
There was some good that came out of the game, but more bad and even more ugly.
According to oddsmakers from online sports book Bovada.lv, the Giants are now 3-point home favorites versus the Lions after opening as a 5-point favorite.
This will be the first time the three-time Pro Bowl receiver has played since spraining his left ankle in a preseason game on August 21.
Matthew Stafford, who became the NFL's highest paid player in the off-season after inking an improved five-year contract, threw two touchdowns but finished with only 122 passing yards from 15 of 21 attempts. LG Justin Pugh moved to tackle and Brett Jones replaced him.
DYNAMIC DEBUT: The Giants will have to watch Kenny Golladay, who had two TD catches last week.
While Beckham will be a welcome sight for New York's offense, the defense will be without top cornerback Janoris Jenkins, who was inactive for the contest due to ankle/hand injuries.
"That was the biggest play of the game", Marshall said of his drop. Reese not only drafted Flowers ninth overall in 2015 when most scouts thought him to be less than a first rounder, but he has stuck by him when those scouts have been proven correct time and time again. "He will get out on you if you're not patient and do what you have to do".
RUNNING: Don't expect much running. In the showdown previous year, the Giants had 114 yards on 32 carries while the Lions had just 56 yards on 19 carries.
Will the Giants remain a disappointing team in Week 3?
Information from the Associated Press was used in this report.