All the applications you need for work are already available for Chromebook, including Microsoft Word, OneDrive, Adobe Photoshop and Lightroom, etc. And in May Google announced it would be rolling out Google Play support to Chromebooks. This means that millions of Android apps will be available to Chromebook users.
The list of Chromebooks with Google Play support is here. (I can already install and run my favorite Android apps on my Chromebook Flip, including Skype.)