求助一题AA 这个月JJ新题~~~

The following appeared in a memorandum from the CEO of a consumer electronics manufacturing firm to the head of the company's human resources department, who is responsible for hiring new employees:

　　"Eight years ago, our firm's profits were increasing with each new employee we added. We discovered that each employee had the skills and motivation to generate more revenue for the firm than his or her salary cost us. However, for the past two years, our profit margin has been falling, even though we have continued to add employees. Thus, our newer employees are not generating enough revenue to justify their salaries. We must not be hiring new employees with the same level of skills and motivation as those we used to attract. Clearly, then, failures in the human resources department account for our falling profits." 

大家请给点思路吧~~~

　　"Eight years ago, our firm's profits were increasing with each new employee we added. We discovered that each employee had the skills and motivation to generate more revenue for the firm than his or her salary cost us. However, for the past two years, our profit margin has been falling, even though we have continued to add employees. Thus, our newer employees are not generating enough revenue to justify their salaries. We must not be hiring new employees with the same level of skills and motivation as those we used to attract. Clearly, then, failures in the human resources department account for our falling profits." 

大家请给点思路吧~~~

1，Profit的增长直接与新员工挂钩，没考虑市场背景，或经营策略或客户群等其他因素

2，用过去判断现在，认为事物一成不变

3，只说了新员工，没有说老员工

我觉得不是很全面，写出来做参考。。。