How to get around a co-worker who has what I see as a passive agressive position in the work place?

No matter how I expain a best practice approach whether it is in person, by email or phone message, the co-worker will agree with what is being said and do not the opposite or half of what was discussed, but nothing at all. When approaced there are little comments of excuses of why he fell short. Will agree to recommit, but will not follow through. While I do not work in a supervisory position, we must work in conjuction with one another, thus many times I am left with catching what he "missed" and or correcting his 'oversight. If I ask to speak with him, he has a laundry list of why things are the way they are.
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