Trainer leaves a pack of German Shepherds alone, But pay attention to the right side of the screen

I seen some well behaved dogs and great dog trainers out there. I had thought I had seen the best until I watched this. Good trainers have great control over their dogs mostly at all times. But this specific dog trainer is ridiculous. He shows incredible control over a pack of German Shepherds in a local park and he doesn’t even need a leash to keep them under his commands while exploring. You can tell these German Shepherds consider him the pack leader and they look happy to be there with their owner.