What are the advantages and disadvantages of identifying and using general competencies to guide staffing activities?

Here are the ADVANTAGES: 
1. An identified competency can a help a company to focus on the key factors which are needed in all employees in order for them to succeed and be effective in their duties.
2. A competency based approach can help an organisation to enhance its flexibility and responsiveness to environmental changes.
3. The approach can also help to prepare employees to assume a wide variety of responsibilities in their duties.
DISADVANTAGES
1. It may be difficult to identify the most important or critical competency that needs to be considered in a workforce.
2. The process of determining the specific behaviors that reflect each of the identified competency is tedious and time consuming. 

new ideas form the base for the growth of the people.each time they try to develop, they may discover a new form or abilities of themselves this makes the people satisfied in living their life in a happy way.this makes sense that new ideas of people cn change their live.the ideas, if bring their best, they will be changing their present state.