Carey was an All-American last season after leading the nation in rushing yards per game and was just as good this season to become Arizona's first offensive player of the year.
Despite teams gearing up to stop him, the junior ran for 1,716 yards and 18 touchdowns with a per-game average of 156, which was second nationally to Boston College's Andre Williams.
Jack started the season as a linebacker, but became a two-way player when UCLA's coaches put him in at running back against Arizona on Nov. 9. He ran for 120 yards, including a 66-yard touchdown that sealed the game, and has been in the Bruins' backfield ever since.
Jack had 70 tackles and an interception as a linebacker and ran for 267 yards — with a 7.2 per-carry average — and seven touchdowns as a running back.