I'm going to be working on a new Intranet for my company. The company is relatively small with around 150 employees. We have a number of different Departments within the company.
I was planning on having a single top level Site Collection and all other Sites directly below this single Site Collection (not including My Sites and Search Centre, which will be a separate Site Collections). Each Department could have further Sub Sites in the future. So something like this:
Home (site collection)
- Department1 (sub site)
- Department2 (sub site)
-- Dept2Subsite1 (sub site)
-- Dept2Subsite2 (sub site)
- Department3 (sub site)
- Is there any reason why I should not use this structure?
- What are the advantages/disadvantages of having a single site collection at the top compared with having a site collection for each department (for example)?