Until free agency begins, NFL mock drafts are little more than an entertaining thought exercise. But Monday's opening of the negotiating window or 'legal tampering period' served as a reminder about the calendar and how much change could still be ahead. NFL teams are putting their offseason plans into action, reaching agreements before the official start of the new league year on Wednesday as they reconfigure rosters and tinker with their salary-cap standing. And while teams are still setting up moves that will further reshape the draft, the first flurry of action did help shift the outlook for several teams. With that in mind, here's USA TODAY Sports' latest 2024 NFL mock draft after the first day of free agency: