Washington, D.C., April 28, 2017 – As the Chairman and CEO of the industry-leading workforce solutions company Pinnacle Group, Nina Vaca is a leading expert on STEM demand and the STEM talent pipeline.  A STEM leader and advocate, Vaca joined Tata Consultancy Services Surya Kant in delivered today’s keynote at the Global STEM Talent Summit, presented by STEMconnector.  Addressing over …