Answer ANY THREE (3) questions in this section [60 MARKS] QUESTION 2 (20 marks) In order to forestall delays and schedule slips, project managers have traditionally tried to manage project slacks and ensure early start of activities are adhered to so that any time gain can be transferred to the subsequent activities. Critical chain project management (CCPM) is an approach proposed by Dr Eli Goldratt for dealing with various project situations, it use theory of constraints to manage project slacks. 2.1 From a critical chain project management perspective, identify and discuss the various explanations offered to as to why projects are completed late. (10 marks) 2.2 With the aid of examples discuss the three types of time buffers that are recognised by the critical chain method. (10 marks)