[raverbashing]

Correct

But several execution details come from the idea guy

Technical people can, of course, come up with execution details (this is not use RoR instead of node.js kind of details)

It's one thing to have an "idea" like "Sell cat food on the internet". That's a dime a dozen

The real idea that investors are looking for is all the nitty-gritty details on how selling cat food on the internet can be a good idea (is it customer acquisition? sales structure? pricing?)