The Lakers improved to 13-2 to start the season by winning a game they might have lost if not for their depth and resourcefulness. In the end, their second unit enabled them to pull out a victory over Derrick Rose and the Chicago Bulls. Shannon Brown scored 21 points and Steve Blake and Matt Barnes sparked a 10-0 run in the fourth quarter. Blake made a pair of 3-pointers and Barnes hit one. Lamar Odom also scored 21 points. Rose scored 30 points for the Bulls and also had five rebounds and eight assists. The Lakers’ backups outscored their Chicago counterparts, 39-10. Next: the Utah Jazz on Friday.