Power Rankings: Warriors are No. 1 By Marc Stein | ESPN.com

Monday, Nov. 10

Select One Preseason 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Team: Select One Atlanta Boston Brooklyn Charlotte Chicago Cleveland Dallas Denver Detroit Golden State Houston Indiana LA Clippers LA Lakers Memphis Miami Milwaukee Minnesota New Orleans New York Oklahoma City Orlando Philadelphia Phoenix Portland Sacramento San Antonio Toronto Utah Washington Week:Team:

It took only four editions of ESPN.com's NBA Power Rankings for Steve Kerr, in his fledgling coaching career, to make it to the rankings summit.

The rookie coach and his Golden State Warriors, leading the league in defensive efficiency, are this week's new No. 1, capitalizing on heavy falls by the likes of San Antonio, Dallas and Cleveland to leapfrog into the top spot.

The Warriors outlasted Houston and Memphis as the league's last unbeaten team until Sunday's loss at Phoenix, and essentially clinched their promotion to No. 1 by taking advantage of the absence of Dwight Howard and Patrick Beverley to win Saturday night in Houston after routing the Los Angeles Clippers earlier in the week. The Rockets, meanwhile, join the Warriors, Grizzlies, Toronto and Miami in a virtually all-new top five, which reflects the unpredictable nature of the early season when sample sizes for all teams are so small.

A more detailed look at this week's order can be found on Stein Line Live. And you can comment below on this week's 1-to-30 ladder, which, as always, was assembled with the usual supportive dishing we get from ESPN Stats & Info and the Elias Sports Bureau.