Strategy is the backbone of any business enterprise, there are cases of Pakistani businesses where they have been very vulnerable to competition and other external forces despite of all the financial and technical resources. This study evaluates the impact of strategy formulation and implementation on Pakistani firm's growth. This study tried to find out the reason why Pakistani business are not "Built to last". It is found that sustainable growth is highly dependent on firm's ability to formulate and implement strategy. It was also found that strategy formulation has more influence over sustainable growth as compared to strategy implementation. Effect of different constructs of strategy formulation and strategy implementation over different constructs of sustainable growth was also assessed and presented in the study. This study is useful for management professionals and business executives at strategic decisional level to understand how businesses can be made "Built To Last".