A client requests assistance of J. Shik, a chartered accountant, in the installation of a computer system for maintaining production records. Shik has no experience in this type of work and no knowledge of the client's production records, so he obtains assistance from a computer consultant. The consultant is not in the practice of public accounting, but Shik is confident of his professional skills. Because of the highly technical nature of the work, Shik is not able to review the consultant's work.