I want to escalate an employee to my boss, I want to write an email. Please help me how to start the email and what subject would be better.<br/>********<br/><br/>Ex. Sub: Concerns about XXXX<br/><br/>Hi XXX,<br/><br/>I would like to bring to your kind attention about XXXX, who is behaving in a very unprofessional way.<br/>*********<br/><br/>Thanks in advance.