If anything, move the draft up a bit... Give a bit more time for F/A... It would allow teams to find solutions to questions they might not have time to answer the way the format is now. It would also give them a chance to work with the rookies even more so than they have had a chance to do so in the past.
Last two weeks of Feb: Combine.
Last day of February, teams must have made a decision on F/As R/F/As.
First weekend in March: NFL Draft.
Monday after draft free agency opens.
Pretty much the format that teams they have right now.
Thanks to VIPER!