Setting up streams and builds

Hello,
I have this scenario. A team that has 3 groups. Each group is
responsible and working on different components of the product. We want
to setup our streams and builds such that a failing build of one group
will not block the progress of other groups.

Here is what we attempt. Create 4 streams. Each group will have their
own streams. Each of these streams will only contain the components
that the group is responsible for. The #4 stream is an integration
stream that contains all of the components of the team.

Each group will have their own build setup to build the components in
their streams. These builds will run daily. Once a week, the team will
integrate their changes to the integration stream. There is a weekly
build that runs on the integration stream.

I just wonder if there are any pitfalls in this setup, or if there is
better setup for this scenario? Thanks.