Global software development challenges traditional techniques of software engineering, such as peer reviews or teamwork. Effective teamwork and coaching of engineers highly contribute towards successful projects. We will evaluate within this case study experiences with validation activities in a global setting within Alcatel's Switching and Routing business. We will investigate three hypotheses related to effects of collocated inspections, intensive coaching, and feature-oriented development teams on globally distributed projects. As all these activities mean initial investment compared to a standard process with scattered activities, the major validation criteria for the 3 hypotheses is cost reduction due to earlier defect detection and less defects introduced. The data is taken from a sample of over 60 international projects of various sizes from which we collected all type of product and process metrics in the past 4 years. Keywords Global development, validation, inspection, ...