I think that there are disadvantages to using a PaaS.  It can bring all of these components together, but it also means that you don&#x27;t benefit from best of breed systems at each layer.<p>Also, up until now most PaaSes were vertically integrated and opaque.  I imagine that the PaaS of the future will look more like OpenShift where it is a curated set of components in this stack instead of an opaque stack.