The NFL has called a special meeting Thursday for all NFL general managers and head coaches. It will take place in Indianapolis on the first day of the league's scouting combine. Three members per team are being told to attend -- general manager, coach and another high-ranking team official, according to league sources. The NFL is expected to brief teams on any number of issues pertaining to labor uncertainty and football operations, including what to expect in the days leading up to the expiration of the collective bargaining agreement on March 3.