Holding that LPNs and RNs were supervisors although LPNs did not have power to discharge or promote, LPNs' recommendations could lead to formal discipline action, LPNs instructed nurses' aides and were their team leaders, assigned patients to nurses' aides, and were responsible for their work
Holding that LPNs' authority to assign work to aides did not involve independent judgement where authority to assign work to aides simply involved following management's policy and procedure