It was Kansas. Then it was Duke. Then it was Kansas. And now it's Duke -- again.
The Jayhawks fell from No. 1 after losing to Arizona State on Saturday, leaving the top spot open for a replacement. There are a few candidates for No. 1, Duke, Michigan and Tennessee chief among them.
Duke and Tennessee each have one loss, with Duke's to Gonzaga and Tennessee's to Kansas. Duke, however, has defeated Texas Tech, Auburn, Kentucky and Indiana, while Tennessee's best wins are over Gonzaga and Louisville. The Blue Devils have the clear edge over the Volunteers in that category, and that's before factoring in Duke's terrific schedule-adjusted efficiency numbers.