While the “hot topic” nowadays is BYOD, most companies are starting to realize that it is not only about BYOD, it is about enabling a mobile workforce. Companies have different business needs, some will embrace BYOD, some will not since they want to own their mobile devices, and some others will have both: company-owned mobile devices and employee-owned mobile devices. If you only think about BYOD, you really are missing the overall strategy to enable mobile workforce, because your policy must to embrace both scenarios.
Read more at source: http://blogs.technet.com/b/yuridiogenes/archive/2014/09/23/enterprise-mobility-beyond-the-byod-phenomenon.aspx