The Packers added more depth to the backfield by selecting University of Hawaii tailback Alex Green in the third round tonight, the 96th player taken overall.  Green is a thickly built runner at 6-0, 225 pounds who burst onto the scene in his final year in the run and gun offense of the Warriorrs.  Green provided the run, gaining 1199 yards, averaging over 8 yards a carry with 18 touchdowns in the spread offense.  A native of Portland, Oregon, Green followed a now familiar path to Green Bay, first enrolling at Butte Community College, the same junior college that produced Aaron Rodgers.  Alex even played with Aaron's younger brother Jordan on an undefeated, junior college national championship team, rushing over a thousand yards.  After 2 JC seasons and with no division 1 offers, Green was ready to play for Liberty College until a teammate convinced Hawaii coaches to give him a look.   A backup in 2009, Alex became the primary ball carrier and check down receiver last year.  The Packers hope Ryan Grant comes back from opening day foot surgery and James Starks continues to impress after his playoff showing in Philadelphia.  Brandon Jackson is sure to remain in the mix but Alex Green is going to be a player in the battle for not only a roster spot, but carries in the backfield.  The Packers were on the offensive in all three rounds, taking tackle Derek Sherrod of Mississippi State in the first round, receiver and return specialist Randall Cobb of Kentucky in round two and now more Green to Green Bay with Alex Green of Hawaii in round 3.  The Packers have five more selections over the final four rounds on Saturday.