Many companies in the today’s rapidly changing world are engaging in mergers to achieve sustainable development. However, most of them are failing as a result of cultural differences. The merger between Sprint and Nextel is a perfect example of such failures. The two companies joined forces with hopes of taking advantage of each other’s strengths to improve competitiveness and market share. This goal was not achieved primarily due to their cultural differences, among other factors, created a barrier. The companies failed to do their cultural due diligence to first understand each company’s culture along with each of their pros and cons. Understanding how each company worked and collaborating to see how the two companies can work together