Van Gundy putting puzzle pieces together

(Photo: Gregory Shamus, Getty Images)Auburn Hills — Last season, Pistons coach Stan Van Gundy was just learning how to juggle his roster, which added several new pieces.

The Pistons got Marcus Morris, Reggie Bullock, Steve Blake and Aron Baynes in the offseason, had to work in rookies Stanley Johnson and Darrun Hilliard and added Tobias Harris at the trade deadline.

This summer, the roster attrition continued, as they brought in Ish Smith, Jon Leuer and Boban Marjanovic in free agency, along with rookies Henry Ellenson and Michael Gbinije.

Now the task turns to fitting all the puzzle pieces together.

Because of the roster versatility, several players can be used at multiple positions, which Van…