Default assign is a Redmine plugin that allows you to define a default person for new tickets to be assigned to.
Allows you to specify a global default as well as per project defaults.
Getting the plugin
A copy of the plugin can be downloaded from GitHub.
Installation and Setup
Follow the Redmine plugin installation steps at the Redmine Wiki.
Make sure you did the rake db:migrate_plugins step from above.
Restart your Redmine web servers (e.g. mongrel, thin, mod_rails)
When you create a new project, the 'Default Assignee' dropdown will be empty because there are no users in your project. You need to add users as members of your project and then the dropdown will be populated.
If you need help you can contact the maintainer at github.com/rchady.