Lead the way

Some people make strong decisions and then never hold to what they have said. You can't force them. And if you will try to put some pressure on them it won't led to positive result either. It will make things even worse.

The smartest  would be to leave them with all their shit alone. And if you can't avoid having some business with them just delegate as much interaction as possible to others.

And keep moving forward despite what. That is the only way to help this people. To lead the way they could follow.