The document discusses common flaws that business cases for IT investments often have: being too IT-centric and not clearly defining the business impact, being too focused on productivity savings which are difficult to quantify, qualifying benefits but not quantifying them, and quantifying benefits too conservatively. It notes that IT leaders proposing investments struggle to find time to develop compelling business cases. The author helps customers as an Oracle consultant to prepare business cases by leveraging models and benchmarks from experience with past cases.