作文貌似做到了新题，但与库里的很类似

tobbyqin

the managing director of Algae Men's products (全名不太记得了，algae肯定是对的） write to the CEO:

For 4 years after our first 'I am algae man' advertising compaign, where we used famous atheletes as spokesman, our sales were increasing, and our consumers are middle-aged and older men. for the last 2 years, the sales remained at the same level. I propose to hire Dustin Xxx, who is the teen pop star, as our spokesman, to open the youth market. It will increase our sales.

flaws:
1. youth不一定有买这个产品的需要，就算找了流行明星也不代表产品有人买。有可能公司的这个algae cxx的产品就是针对中老年人的产品
2. 影响销量的有可能是其他因素，并不是因为代言人的问题，比如说整体市场都不好，其他竞争公司的销量也可能下降了呢。又或者是sales的service不够好，或者四年后用户发现公司产品没什么作用 决定不买了。换代言人也起不到作用
3. 就算产品没问题，也针对所有年龄层，但并没有证据表明这个POP STAR可以lead to increased sales, 缺乏具体数据证明，也是站不住脚的