4.1 To what extent is it unethical to expect a manager to have such a broad base of skills and abilities?

4.2 Do managerial models like this reflect the reality of day-to-day management? Explain.

(Please see that it is university level and lengthy enough ,also in own words and conceptual based , its very urgent please help me out with the best answer and please see it is not plagiarize from the net )