Top 10 challenges for IT in rolling out enterprise content management

What are the 10 top issues that Enterprise IT leaders face when they try to take the path of the Enterprise Content Management roll out ? Here is my take:

1. Decision between single technology vs multiple technology for content management ( suite vs best of breed)
2. User experience vs backend technology
3. How much to spend on customization on a vendor supplied content management product
4. Do we need to justify by ROI for each content management application
5. Meeting the demand of web experience by end users
6. Marrying enterprise security approach with the content management products functionality
7. How to on board the users and get a quick adoption of the new system ?
8. Challenge of consolidating the requirement of different business line to provide single user experience.
9. Content migration : cost and risk
10. IT scaling up to managing multiple projects and defining an enterprise governance architecture.