LeBron James and Dwyane Wade Work on Post Moves with Juwan Howard

For Miami Heat players, Juwan Howard is a friendly face.

In the final stages of the team's preparation for the physical Chicago Bulls, though, the Heat's newest assistant coach impersonated Miami's adversaries, using a blocking pad to try to disrupt LeBron James, Dwyane Wade, Chris Bosh and Michael Beasley as they made their moves toward the hoop.

Howard, who retired after 19 seasons—and two championship rings—has assumed these duties from Keith Askins, who was moved from Erik Spoelstra's staff to a scouting role. 

The drills went on long after the official practice ended, and some of the other players had already spoken to the media, headed to the locker room and left the building.

And the resistance, while firm, probably won't match what the Heat will encounter from Joakim Noah, Taj Gibson and company Tuesday night.

"It's all planned," Bosh said of the drill. "We know they're big, physical and we know we have to finish."