Clemson's margin at No. 3 over Michigan narrows after close win vs. N.C. State.
Alabama and Clemson stayed 1-2, while Florida State and Ohio State climbed to 3-4.
Stanford tumbled to No. 15 after loss to Huskies. Alabama, Ohio State, Clemson top poll.
Clemson drops to third in the latest rankings. Ohio State and Michigan complete top five.