The document discusses 5 common mistakes that companies make with their IT departments that cause them to lose money. It then provides suggestions on how to avoid these mistakes:
1. Mistake 1 is ignoring miscommunication between IT and business teams, which leads to 66% of IT project failures costing $30B annually. The suggestion is to ensure IT and business speak the same language.
2. Mistake 2 is implementing IT projects as separate "silos" instead of as integrated systems, which increases complexity and maintenance costs that consume 80% of IT budgets. The suggestion is to put all IT systems on a standardized platform.
3. Mistake 3 limits IT to only automation instead of helping create new business capabilities