I often travel for work, and sometimes am gone sunday night until Friday evening. That means DH is responsible 24/7. Does he do everything my way. Heck no! Does he even do everything the way I like it, or think it is best. Heck no! But I am sure there are a lot of things that I do that he doesn't think are the best for our kids either. But if I look at the whole picture, he does a great job. And there are a lot of things that he does better than me. He has more patience for me, for example. So if our son was up for ear infection or cold in the middle of the night, he could handle patiently walking with him hour after hour, whereas I would loose it after 30 min. There are countless other examples.
I think it works because on the whole we are really on the same page. And I saw the dynamics with my own parents - my mom would say she had 100% child responsibility herself and nag and complain, but if my dad tried to get involved, she would remind him how he was doing it wrong or could be better, so he would back off, and she would be back to 100% and resentful. It didn't work, IMO.
I made a conscious effort to do better. So I bit my toungue when my first was a baby. Sometimes, to myself I would think, wow, he should have done x. But half the time I would think, wow, I hadn't thought of that, DH did it differently but the results are just as good, or even better. So I got confidence in him, and stopped worrying about all the little stuff, and let them forge their own way.
If something really bugs me, then I bring it up with him. At night, when DS and DD are both in bed, after I have had time to think about it and am not mad. Then I either convince him, or he convinces me, or we just accept that on issue X we will disagree.
I think the key is if you have confidence in one another. Do you have confidence in your DH, and him in you? If so, it will work. If not, find the confidence, or find another solution.
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