The City Manager shall be the administrative head of the government of the City under the direction and control of the City Council, except as otherwise provided in this chapter. He shall be responsible for the efficient administration of all the affairs of the City which are under his control. In addition to his general powers as administrative head, and not as a limitation thereon, it shall be his duty, and he shall have the powers set forth in this chapter. (Ord. 2176 § 1 (part), 1977).