Mac Jones, the former New England Patriots quarterback, has shown significant improvement with the Jacksonville Jaguars during the preseason, leading the league with a 120.7 passer rating and excelling in a recent game against the Tampa Bay Buccaneers. He appears to be fitting well into the Jaguars' system and is potentially securing the backup spot behind Trevor Lawrence. Meanwhile, New York Giants quarterback Daniel Jones struggled in his preseason debut against the Houston Texans, throwing two interceptions, including a pick-six. Despite some good moments, Jones' mixed performance has raised concerns about his consistency and decision-making as he returns from an ACL injury. Giants' head coach Brian Daboll has acknowledged the need for improvement, emphasizing the evaluation aspect of preseason games.