Umbrex is pleased to welcome David Summa with Business Model Innovation.  Dave has 10 years in management at Fortune 100 companies; 10 years as CEO of Silicon Valley startups; over 60 years of experience on Board of Directors; and was a partner at McKinsey where he ran the Global Innovation Practice.  Today, Dave is a partner in Business Model Innovation LLC where he advises CEOs, does consulting projects and takes on acting management assignments.  He has operating and consulting experience…