Blending MPLS with Optimized WANs as a Service

While it's understandable that enterprises are reluctant to ditch their existing MPLS networks completely, they could take a hybrid approach.

http://www.basearticles.com/Art/1159749/191/A-Hybrid-Approach:-Blending-MPLS-with-Optimized-WANs-as-a-Service.html