Zach Lowe interviews Jeff Hornacek

Grantland's Zach Lowe writes: "The Suns, by any measure besides championship banners, are one of the most successful franchises in NBA history. They missed the playoffs just seven times from 1975-76 through 2009-10, with 19 50-win seasons in that span. But they’ve missed the playoffs three straight years now. Last season, the first of the post–Steve Nas…