There's a lot to consider.
"I'm not sure it's one thing consistently. I think several things, and we've got to every game be dialed in on all those critical things that determine winning and losing," he said after a visit to Germany ended in the Giants' first loss in an international regular-season game.
A slow start cost the Giants, who didn't score until the third quarter of a 20-17 overtime loss to the Carolina Panthers on Sunday.
Jones was sacked twice and threw two interceptions in his team's fifth consecutive loss.
Trailing 17-7, Jones ran for a 2-yard touchdown in the fourth quarter to cap a 13-play, 96-yard drive that took almost seven minutes and led a 12-play drive that tied the game on Graham Gano's 42-yard field goal with 5 seconds left that forced overtime.
"It's very frustrating. Came up short, obviously hurt ourselves a lot. Turnovers were a critical factor in the game. Very frustrating," Jones said.
When Giants edge rusher - and former Panther - Brian Burns sacked the Panthers' Bryce Young on the first drive of the game, it seemed as if it could be another long day for Carolina.
"We've got to get off to a faster start and stay on the field, sustain drives in the first half," Jones said.