WOTC - Outsourcing of public sector jobs

I asked this question in the Wisdom of the Crowd:

Is outsourcing of public sector jobs good?

Here are the responses: (61 Votes)

46 % - There is loss of expertise of permanent workers.
30 % - It depresses the wages of the outsourced workers.
20 % - The contractor makes a good profit margin.
5 % - It helps to improve efficiency and bring down cost.

See the pie chart at: 
http://www.wisdomofthecrowd.sg/chart.aspx?ID=1014