Critically evaluate the use of motivation theories in contemporary business to determine their effectiveness in improving employee task performance.

Part One:
According to Rollinson (2010), who cites Vroom, ‘task performance’ does not rely solely on motivation.
Required:
Critically evaluate the use of motivation theories in contemporary business to determine their effectiveness in improving employee task performance.

Part Two:
“Soft systems approaches to change emphasize not just the content and control of change but also the process by which change comes about. They require consideration of the cultural and political aspects of organisations as much as the structure and systems”. (Senior and Fleming:2006).
Required:
Determine in what situations it is either appropriate or inappropriate to employ soft system methodologies.