Is there a kind of "mesh" effect, where your strengths cover your spouse's weaknesses, and vice-versa?
Boy, I really lucked out there, on this marriage. She is very detail oriented (I am, but not nearly so much or consistently). I make the strategies, we kick them around, she handles the day-to-day allocations of funds required by the strategies.
We have poked into areas she would not only never have tried, but never have even seen, and for me, I could very well have lost a lot of financial leak-off by inconsistent control of money allocations, which she always handles/times for optimum effect.