10 things we learned from 2025 NFL preseason: Giants' succession plan unfolding; Jets, 49ers to lean on run

The 2025 NFL preseason has provided a glimpse into the future of the league. Here are the key takeaways: 1. The New York Giants' succession plan is unfolding as Daniel Jones takes the reins from Eli Manning. 2. The New York Jets and San Francisco 49ers are expected to lean heavily on their running game this season. 3. Several high-profile rookies, including the top draft picks, have made an immediate impact in their preseason debuts. 4. Injuries to key players have already become a concern, with several teams dealing with significant losses. 5. Quarterback battles have been a prominent storyline, with some teams still undecided on their starters. 6. Defensive units have shown promise, with several teams showcasing improved schemes and talent. 7. Special teams have been a focus, with new rule changes and personnel changes affecting the kicking game. 8. Roster depth has been tested, as teams evaluate their talent and make difficult roster decisions. 9. Coaching changes have brought new philosophies and strategies to the field. 10. Fans are eager for the regular season to begin, with high expectations for the upcoming campaign.