Original sentence: Coke's executives then began to invest in research and development to discover the reason behind Pepsi's success over Coca-Cola.Instead of focusing on the demographic of customers, Coca-Cola instead focused on the substance (the nature of the product itself).They found that while most Pepsi drinkers strongly preferred Pepsi and rarely settled for others, Coke drinkers, although they preferred Coke, were more likely to buy and drink Pepsi, RC or a store brand if it was the only brand available.This change in the industry ended up having an adverse effect on the Coca-Cola company.To add to the problem, the Pepsi drinkers were generally a younger demographic, reflecting the success of the youth-oriented "Pepsi Generation" campaign the company had begun in the late 1960s
Edited sentence: An image change would not work.And even worse, the Pepsi drinkers were generally a younger demographic, reflecting the success of the youth-oriented "Pepsi Generation" campaign the company had begun in the late 1960s.But they believed that their problem was one of substance (the nature of the product itself) rather than its image.Coca-Cola could have just tried to reposition the brand and woo the same younger drinkers.Coke's executives knew that situation wouldn't last forever.Perhaps, management thought, this might be the answer.So they put the company's marketing department on to studying the problem.The initial results were alarming.While most Pepsi drinkers strongly preferred Pepsi and rarely settled for others, Coke drinkers, although they preferred Coke, were more likely to buy and drink Pepsi, RC or a store brand if it was the only brand available.While this may have sounded like great news for Goizueta and his team, it was not