Mike Hogan uses the following to suggest a move to NewSQL: Lack of Business Visibility Cripples Traditional SQL DaaS, Drives NewSQL.
the shift to a database as a service (DaaS) severely reduces the DBAs visibility into the business, thus limiting the ability to hand tune the database to the requirements of the application and the database. The solution is a cloud database that eliminates the hand-tuning of the database, thereby enabling the DBA to be equally effective even with limited visibility into the business and application needs
I agree with the problem positioning, but feel strongly that NewSQL is not a requirement to address the problem here, you can equally work a little services layer and put all the control into the hands of the user, essentially replacing (a lot of) the DBA tasks with automation and APIs.
What NewSQL gives you though, and we see that with Xeround and supposedly also ScaleDB, is the elasticity and transparent sharding that’s difficult to achieve with the more traditional Oracle, Sybase or SQL Server databases that are still often required in the enterprise space.