Consumer demand for the drug company's other products has been strong in the time since the company's newest product was introduced. Many new products fail whether or not they are supported by marketing campaigns. Undertaking a new marketing campaign would endanger the drug company's overall position by necessitating cutbacks in existing marketing campaigns. The drug company has invested heavily in its newest product, and losses due to this product would be harmful to the company's profits.
Drug company manager: Our newest product is just not selling. One way to save it would be a new marketing campaign. This would not guarantee success, but it is one chance to save the product, so we should try it.
Which one of the following, if true, most seriously weakens the manager's argument?