A successful M&A integration is one that achieves the strategic intent of the deal  - value creation, growth, capability enhancement, or cost synergies - without losing key people, customers, or operational momentum. Unfortunately, many organizations struggle to fully realize these benefits as they move through the three critical post-close integration stages: Stabilize (Day 0-30), Harmonize (Day 30-90) and Optimize (Month 4-18). In my experience leading more than 10 integrat