Hey Eric,
Your last answer was very helpful, thank you! We were able to fix the redirects so the "www.company.com" pages redirected to the "company.com" pages, or so we thought. Our last crawl is showing us that on top of the duplicate page issues we know have "11% of site pages served 404 errors during the last crawl."
Do you have any insights on where we might have gone wrong?
Thanks again!