Fearful of significant setbacks in the development of young players over months of inactivity, several teams left out of this season's regular-season resumption in Orlando, Florida, have proposed ideas for regional mini summer leagues, training camps and organized team activities, sources told ESPN.

As the rest of the NBA prepares to restart the 2019-20 season with training camps, regular-season games and playoffs beginning in July, teams left out of the 22-team format and facing a possible nine-month hiatus between games are seeking unprecedented offseason access to players, sources said.

Teams want an opportunity for training camps to start seven to 10 days earlier for the 2020-21 season for those teams left out of Orlando.

Without participation in the Orlando resumption, part of the hope for coverage includes some teams' belief that organizations are losing valuable opportunities in this trying time for team communities and the country, sources said.