(AP) -- Clubs that hired a new head coach after the end of the 2013 regular season may begin offseason workout programs.
That includes the Detroit Lions and new coach Jim Caldwell.
Here is the league schedule for the spring and summer:
May 2 - Deadline for restricted free agents to sign offer sheets.
May 7 - Deadline for club to exercise right of first refusal for its restricted free agents.
May 8-10 -2014 NFL draft, New York.
May 19-21 - Spring league meeting, Atlanta.
June 22-28 - Rookie symposium, Aurora, Ohio.