[tdr]

Both points-of-view are a little one-sided (although martin explains why), but yours is too aggressive.

Vision and execution together give the value, not one or the other. That's why YCombinator and PG focus so much on the team: you need complementary skills.

While I can't fully agree to "ideas worth nothing, execution is 100%", the fact is people come up with your idea independently. The value of it will be show by the ones who execute it.

This "you are easily replaceable" thinking is probably the worst way to think of getting into a startup or any kind of business partnership.

To not make this any longer: startups are like a marriage. Is your wife (/husband) easily replaceable?