I'm on the other end of that curve; I tend towards thinking and mentally mapping / exploring permutations and implications at the expense of build/ship/iterate.

I'm on the other end of that curve; I tend towards thinking and mentally mapping / exploring permutations and implications at the expense of build/ship/iterate. I've learned to adopt a bias to action when called for, but it's a conscious effort. IMHO teams with a range of cognitive styles are the most effective.