Can I use this to show all network posts on main blog?

Hello

I'm currently using the Network theme from WPMUDEV. Unfortunately this theme is becoming a little dated and I would like to change to something a little more modern.

Know the sort of functionality that the Network theme brings I'd like to be able to have a main/master site that takes all of its blog posts from network sites.

Meaning, the main site's blog roll is made up of all of the posts from the network.

I'd like this to be totally transparent to the user... They land on our home page and see a blog roll full of content.

It seems to me like I can get this functionality via a widget so that network posts appear in the sidebar but I want them to take over the whole blog roll.

Thanks in advance

Adam