Looking back at the past 20 years of experience in implementation and customization of PLM applications, it can be observed that the technological complexity of the systems has increased dramatically, but it does not match the growing complexity of the business. These observations are discussed in research as well as in the PLM blogger community. Vendors implement the new technologies primarily on the upper application levels, which produces on one side applications with the latest technology, that represent the latest research trends. On the other hand, on the lower levels of the architectures often use the same (old) technologies. The increasing number of integrated capabilities creates more diverse PLM-systems. And thus, creates a broader customer base. However, this brings the individual company and existing customers only a limited benefit. In contrast, systems increase in complexity, which is barely manageable-from the vendors and especially from the customer's perspective. The result is little added value and at the high price of lost flexibility. This increase in system complexity, does not coincide with the increase of complexity of enterprises, which is mainly driven by growing organizational complexity (collaboration, decentralization) and increasing product complexity. Industrial companies require a deeper and better support of their existing processes and greater flexibility in adapting the tools to a changing business environment. These findings result from a structured review of more than 30 PLM projects in various industries, from SME's to globally active large companies, 6 primary cases will be presented in this article.