Poor planning, indecisiveness, wishy-washy, inattentive, scatter brain, lack of foresight, always a hindsight, last minute changes, uncooperative.
Don’t expect people to carry out your plans and they have to iron it themselves, you handed to them a messy one and you’ll get a messy result.
You can’t expect people to give you the result you want when you keep changing your mind at every step of the process.