Redundant features- Zoho Docs vs. Zoho Projects

I am about to start a very important project, for which timelines and calendars are less important but perhaps sharing, discussing, and collaborating are important.

However I notice that collaborating is easier on Zoho docs workspace rather than Projects. I.e. it's easier to create folders and sub-folders, sharing multiple formats, and in-frame editing. No?

The other problem is that Projects also have forums just like Forums. So I'm confused which one to use, and share with my team. For sure it's difficult for them to getting around to multiple ways of accessing the same information and I want to give a consistent message.

Any suggestions?

Thanks,
Gaurav