This document discusses the root causes of corporate decline and identifies "Trojan Horses" that can lead to downfall. It summarizes that current literature focuses on success stories and does not tackle the root causes of decline. The document then analyzes the case of Saab's decline, finding that Saab's business model became inconsistent after being acquired by GM, turning it from a premium brand into a middle-class brand and misaligning its value delivery. Spyker later underestimated the funds needed to return Saab to its original model before it became overstretched and ultimately failed.