It should not make that much difference. Now the combine is Feb 23-26th and NFl is talking about first of March? Current draft began April 25th & pushed back 1-3 weeks.
Here is link from May 20th http://stripehype.com/2013/05/20/nfl...aft-dates-set/
* NFL free agency would happen in late February or early March
* The NFL Scouting Combine would come sometime after that, likely in mid-March
* The NFL Draft would be pushed anywhere between 1-3 weeks.