Tiny Archibald. That was Charlotte Bobcats coach Paul Silas' analogy Sunday, when asked to describe the old-school vibe apparent in rookie Kemba Walker's approach to basketball. It's flattering - Archibald was a five-time All-Star between 1974 and 1983. It's also telling. Like Walker, Archibald was a 6-foot-1 point guard in a land of giants. Like Archibald, Walker has developed a craftiness allowing him to create open mid-range shots against taller defenders. The Bobcats drafted Walker ninth overall last June, but Sunday was the first day he could get into a practice. The lockout canceled summer league, then Walker missed the first two days of training camp while details of his rookie-scale contract were finalized.