Problem: A medium-sized technology firm is preparing to undertake a large-scale culture change as part of their long-term plan to become more responsive to social trends and attractive to new recruits in a competitive hiring market. One of their aims is to encourage greater creativity and knowledge sharing. The building will be refurbished and an open plan office with 'hot desking' will be introduced. They also plan to decentralise the management structure in order to give employees greater decision-making power. This is the first time the company has tried to make such a large-scale change, and the existing employees are understandably anxious. Drawing on one or more change management models, discuss how you would manage the organisational change initiative. With reference to this case, identify three key challenges the company might face during this period of change and explain how these challenges could be managed effectively.