SECTION 11.1.  CONTRACTING AUTHORITY OF COUNCIL.
   (a)   The power to make and to authorize the making of contracts on behalf of the city is vested in the Council and shall be exercised in accordance with the provisions of law.
   (b)   All contracts, except as otherwise provided by ordinance in accordance with the provisions of Section 11.2 hereof, shall be authorized by the Council and shall be signed on behalf of the city by the Mayor and the Clerk.