More changes ahead for Bucks?

With his Bucks on a four-game losing streak, Scott Skiles reportedly has stepped down. Gary Dineen/NBAE/Getty Images

The first sign of trouble in Wisconsin came Monday morning, when NBA.com's David Aldridge reported that Milwaukee Bucks coach Scott Skiles had told the organization he was not interested in an extension to his contract, which was set to expire at season's end.

The best teams Skiles has coached at all three of his stops have shared common traits. At his insistence, they've gone all out defensively -- in six of his 13 seasons on the sidelines, Skiles has coached a defense ranked in the league's top five in points allowed per possession -- while struggling to score points at the other end. Since that philosophy failed in 2010-11, when the Bucks won 35 games with the NBA's worst offensive rating, GM John Hammond has sought to add scoring punch at the expense of the kind of defensive-minded players Skiles favored. No move tilted the scales in favor of offense more than dealing injured center Andrew Bogut for a package headlined by undersized, high-scoring guard Monta Ellis at last year's trade deadline.