If there has been one thing holding back companies from going all in on Chrome OS devices is the lack of support for Microsoft's Office suite. That is set to change with the announcement that Google is teaming with Parallels to run virtualized versions of Microsoft's desktop productivity apps.
https://www.notebookcheck.net/MS-Office-apps-coming-to-Chrome-OS-enterprise-devices-thanks-to-deal-with-Parallels.476665.0.html