hbr's 10 must reads for mid-level managers HBR's 10 must reads for mid-level managers hbr's 10 must reads for new managers HBR's 10 must reads for new managers hbr's 10 must reads for executive teams HBR's ten must reads for new managers hbr's 10 must reads on high performance hbr's 10 must reads on performance management HBR's 10 must reads for executive teams Harvard Business Review's ten must reads for mid-level managers