probably important to determine the size of fire, 5 alarm vs 7 alarm, to determine if adequate fire department leadership and fire resources responded to the scene of the fire to lead the fire fighting efforts.
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the fire was reported mid afternoon, still within the work hours of fire administrators who may have been required to respond to a 7 alarm fire. 
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inadequate leadership on scene may have left firefighters without proper fire residue decontamination areas, rest, first aid and recovery areas, safety areas in case more of the building collapsed, approach and evacuation routes for ambulances and a timely determination of a safe zone for fleeing residents.
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while the nuances of 5 alarm vx 7 alarm escape civilians not involved in fire fighting, it makes sense to fire fighters on the front line who depend on predetermined thresholds for leadership response to fire scenes to secure all proper resources for front line fire fighters' safety.