"Why am I out?" Those were the words Carlos Boozer mouthed to an assistant coach after being replaced by Brian Scalabrine with the Bulls trailing 92-89 with 57 seconds left in Wednesday night's loss to the Pacers at the United Center.

Not only was the Bulls' third-leading scorer and top rebounder being replaced during a critical moment of a game against a division rival, but backup power forward Taj Gibson was unavailable with a high ankle sprain. That meant coach Tom Thibodeau thought Option C — Scalabrine — gave the Bulls a better chance of getting a stop than leaving Boozer on the floor.

"Why am I out?" The answer was obvious. He was being replaced by the little-used Scalabrine for defensive purposes.