"It [the Council] could have leased or bought vehicles. That is not what happened. What happened was it saw an existing undertaking doing the work and it went on and took on a large number of the employees. The fact that some of them did not stay is neither here nor there nor that some were placed in other jobs. Out of twenty-three there were some fifteen that were taken on by the first respondent [the Council] and, in effect, a couple of the vehicles, the remnants of the leased vehicles, were also taken on. That enabled the Council to fulfil the activities which it was undertaking to fulfil under the terms of the contract and in order to fulfil those activities under the terms of the contract, in effect, it had taken on part of the Onyx undertaking, that part of the undertaking that did the refuse collection for the client Council which was, in any event, the North East Lincolnshire Council."