The most common reason why Product based organizations are struggling to sustain their existence in market is because their Products lack to embrace the Business Agility fast. They struggle to achieve Business Agility as for the limitations in their product development & delivery such as legacy product, old technologies, unable to scale and many such other reasons. In a nutshell, there is no Technical Agility in their Product!
Bringing Agility into the products, leads to Technical Agility and can be achieved through a combination of some well-known & widely adopted practices such as Agile/ Lean values and principles, Agile engineering practices and DevOps practices along with many tools & technologies that support these practices.