He played college basketball for the University of Memphis and was selected in the 2006 NBA draft by the Chicago Bulls and shortly afterwards traded to the Philadelphia 76ers.

Outside of basketball, Carney was the Indiana state high jump champion in his senior year, with a personal best of 6 ft 11 in (2.11 m).

They trailed 75–73 when freshman Memphis point guard Darius Washington Jr. was fouled on a 3-point shot with no time left.

In the 2005 National Invitation Tournament, Memphis defeated Northeastern, Virginia Tech, and Vanderbilt before losing in the semifinals to Saint Joseph's.

In the opening round against Oral Roberts, Carney led Memphis with 19 points and added 5 rebounds in a 94–78 victory.

Against Bradley in the Sweet Sixteen, Carney scored 23 points, grabbed 4 rebounds, and added 3 steals to help Memphis win 80–64.

Carney's last game of his collegiate career was his worst of the season, managing only 3 rebounds and 1 steal and connecting on only 2 out of 12 field goals for 5 points in 26 minutes of play.

But in February 2007, Carney became a starter due to the departure of Allen Iverson and Chris Webber, two of the Sixers' star players.

When these events occurred, Carney was allotted more playing time, lifting his averages to over 9 points and 3 rebounds per game.

With a little under 20 minutes of playing time a night, Carney was a tough defender while also being a third scoring option in the starting lineup.

And They Win Over the San Miguel Beermen (Philippines) In November 2014, he signed with Cocodrilos de Caracas of Venezuela.

[19] The next day, he made his debut in an 82–75 loss to the Cangrejeros de Santurce, recording nine points, three rebounds, one assist and one block in 26 minutes.