They didnt have much choice. Not saying Schoen should not be let go (which I think will happen after the season) but Jones took them to the playoffs and it was only a two year commitment. Not much option when it comes to QB these days.
Saquon would make no difference. Overpaying for a RB on a losing team makes no sense. The Giants in 24 or 25 or not a playoff contender with Barkley.
Jones got the extension after the playoff appearance in Daboll's first season. They should have franchised tagged Jones & paid Barkley. We'll never know the results if the giants had went this route.
Never pay an athlete after for only having 1 good year. Sample size is important.