How do uk companies mechanisms affect and help their corporate governance

1. collect 15 companies financial statements in uk in 2011
2. find their corporate governance mechanisms
3. collect financial data: ROA (return on asset), revenue, fix asset, ratios
4. check these companiesa annual report, find data, mechanisms in 2011
5. analyse the data and the ratios of each company
6. graph analysis
7. limitations
8. recommendations