NBA Power Rankings: Grizzlies take No. 1 spot from Celtics; Nets, Clippers coming together; Knicks on the rise | CBS Sports Headlines NBA Power Rankings: Grizzlies take No. 1 spot from Celtics; Nets, Clippers coming together; Knicks on the rise Memphis has earned sole possession of first place in the … Continue reading NBA Power Rankings: Grizzlies take No. 1 spot from Celtics; Nets, Clippers coming together; Knicks on the rise