Miami coach Randy Shannon said Sunday he isn't sure which schools the players will chose. McNeal, who has an ailing mother and a small child to take care of in his native Texas, is thought to be considering enrolling at TCU.
McNeal's decision to leave was a difficult one, Shannon said.
"He came to me about two or three weeks ago and said he's got some real family problems and feels like he needs to go back home and be closer with his mom," Shannon said. "I think that's been really bothering him because his mom isn't doing very well."
Adderley likely will return to South Carolina, his home state, Shannon said.
McNeal had 13 carries for 62 yards and two touchdowns in seven games this season. Adderley did not record any stats.
Also on Sunday, Shannon said defensive back Anthony Reddick -- who could have sought to play one more season at Miami if he wanted after missing last year with a knee injury, something that plagued him during his five years with the Hurricanes -- will leave with hopes of playing in the NFL next season.
Reddick appeared in all 13 games this season, starting 11, and finished with 67 tackles, second-best on the team behind sixth-year senior linebacker Glenn Cook's 76.
Miami (7-6) finished the season with a 24-17 loss to California in the Emerald Bowl on Saturday night.
Reddick could be the only Miami player to leave for the NFL with eligibility remaining this season.
Cooper chose not to send in the paperwork and both James and Fox have said they will be back with the Hurricanes next season.