Fred Adams and Alex Patterson are full partners in the legal firm Adams, Patterson & Kelly. Alex Patterson is contacted by a client to defend him in a negligence lawsuit. Patterson directs the case to Fred Adams, who handles the majority of the work. (According to their agreement, Patterson will earn 40% and Adams will receive 60% of any money paid by this customer.) Patterson does not inform the client about Adam's role in this case. Are there any ethical concerns? What is your reasoning?