ya a good producer does help to organise the objectives and make sure their achievable. Anybody can make pie-in the sky estimates. My one at present (former producer on burnout revenge,hitman etc) is using this methodology called scrum where we all focus on achieving set goals (make the sky blue, make that character do this, blah..) Then short meetings are done each morning to discuss progresss. so nobody is going down the wrong road for long than one day. Thus keeping everyone focused, and also at the end of a “sprint” ( 6-8 weeks), you can clearly see what goals were meet and what ones were not..