What part of "execute" don't you get? Hehe, that's exactly what it means: Get it done. On time. With quality.
It's deceptively simple. Can your team (no quotes) do it, and do it well?
Who cares if you are a brilliant programmer... Can you deliver what is required, or are you going to build a gold-plated, incomplete product? That's what execute means, and it's really freekin hard to get that into people's minds: Get it done, do it good enough, don't do it perfect. Perfect ain't for startups, it's for time-wasting hobbyists.
As for the MBA or whatever big university name or title or whatever: It doesn't matter squat. "Harvard" on your resume might get people's attention, but ultimately what matters is "can this person execute?" I have seen some brilliant people without an education do extremely well... And I have seen collossal failures out of people that look like the top 0.1% on paper.
It all boils down to execution: Getting it done. Can this guy prioritize correctly? Does this person know what's important for launch?