Chaos Follows Them

So my in-laws have been hanging out at our place quite a bit lately for one reason or another. It's funny (well, not really), but these are the type of people that chaos seems to follow. They seem to spin in circles ALL of the time. My mother-in-law is the main culprit it seems. She is constantly undecided about EVERYTHING! She is WAY to busy (doing almost nothing) for someone who is retired. She takes in to consideration about 100 pieces of advice on decisions and then always seems to take the advice that she got from one of her son's (who must always be right I guess). She literally does things the hard way FREQUENTLY. It is maddening to see and be a part of. The sad thing though is that we are beginning to see its effects. The mom-in-law is beginning to become so overwhelmed and confused that a lot of the time she seems paralyzed and ineffective. My father-in-law is very dependent and confused after he suffered a brain injury in a major motorcycle accident in 2001. So he leans on her a ton, and it just adds to the mayhem. We have been trying to help and trying to ease some of the decision making and confusion, but the thing is, we are not so sure that they want a different way of life in this respect. So do we continue to offer a helping hand or let them go about their way of chaos and confusion? It is very hard to watch. Not sure what to do.