Can you find at least two places in SharePoint 2010 where the accounts are not managed accounts?
What is a managed account? It is an account that SharePoint knows about and manages it when the password needs to change and when it's role needs to change. As part of the role change, the proper permissions will be assigned (most of the time) to the account to do its job. You would think that all accounts would be managed but there are some places where this is not the case.
1) Search Crawler
2) User Profile Synchronization Service
3) All SSS Accounts that are setup in Service Apps