The Oklahoma City Thunder has fired coached P.J. Carlesimo. Assistant coach Scott Brooks has been named the interim coach and immediately took the helm with tonight’s game at New Orleans. Thunder lost 109-97. The Thunder lost its 10th straight game Friday night against the Hornets, making the team 1-12. The 25-point defeat to the Hornets served as the final straw to what’s been a horrific start to the Thunder’s inaugural season in Oklahoma City. “This was a very difficult decision to make,” said Thunder general manager Sam Presti in a statement released by the team. “It is one that I felt was necessary at this time. I am very appreciative of the hard work and effort that P.J. gave to this team and we wish him the best in his future endeavors.” Carlesimo guided last year’s Seattle SuperSonics to a franchise-worst 20-62 record in his first season with the team in 2007-08. The Thunder has lost by an average of 14 points during its current losing streak, and front office executives became increasingly incensed with the team’s lack of effort. Oklahoma City has trailed by at least 30 points in five of the past nine games. The Thunder’s lone win was a three-point victory on Nov. 2 against the Minnesota Timberwolves, who are third-to-last in the Western Conference with a 2-9 record. After showing signs of defensive improvement over last season in the first six games, the Thunder allowed 100 points or more in the past seven games. The team is ranked 25th in points allowed with a 101.2-point average and 29th in the league in scoring at 88.9 points per game. The Thunder also ranks last in field-goal percentage (40.4 percent) and turnovers (17 per game). Presti was non-committal on Carlesimo’s future following the end of last year’s tumultuous season, leading many to wonder how long the coach would be around in spite of the team’s rebuilding efforts. Brooks, meanwhile, is one of the league’s up-and-coming assistant coaches and could be named the full-time coach. A graduate of the University of California, Irvine, Brooks averaged 4.9 points, 2.4 assists and 1.0 rebounds over an 11-year career from 1988-99 with Philadelphia, Minnesota, Houston, Dallas, New York and Cleveland. Brooks was an assistant with the Sacramento Kings in 2006-07 before joining Carlesimo’s staff a year later. He began his coaching career with the Denver Nuggets as an assistant from 2003-06. The Thunder announced assistant coach Paul Westhead will also be relieved of his duties. Westhead, the only coach who has won a championship in both the NBA and WNBA, had previously served on Carlesimo’s staff with the Golden State Warriors from 1997-99.