writers workshop
I love writers workshop! Instead of ditching it, I would get together with your team and find why it didn't work, then work together to come up with lessons. I just read a great book. I think it's call No More I'm Done (it's at school). It had some great ideas. Writer's workshop requires a lot of modeling on the teacher's part, but it is worth it. You must also include a time to share. It is important that their writing is validated by an audience.