Herald Friday practice notes: Lue hired NBA referees head to work In Lue of playing Globe Lue joins Celtics' staff Doug Collins on the Celtics Chemistry experiment Bedtime story was court order Celtics team up with Chipotle Mexican Grill CelticsBlog Big Baby Is Making A Big Adjustment Welcome Our Newest Assistant Coach... Tyronn Lue? C's Tired Of Old Questions Loy's Place ESPN Predictions....Not Much Celtics Love Celtics Sign Tyronn Lue Dimemag Hostile Environment Cel...