Everyone has good ideas when it comes to being innovative. Sometimes the most left field suggestions can trigger genius. It's the willingness to think and believe that anything is possible, this fosters great results.
Each project should start from a position of understanding each discipline being used. I understand the pressures of the sales team, the challenges that marketers face when creating a plan of action. Moreover, the pressures designers have to make something innovative but not abstract. All great campaigns are run by people who can put all this together. This is my promise to you.
It is essential to keep people motivated and feeling that they have a sense of ownership to a project. If your team feels that there is a collective goal and that the project is bigger than any one person, you have a winning dynamic. Furthermore , let's not forget we should all enjoy the process.
This is a 50,000 foot view, of what I think of when beginning a project. To have world class creative you must know marketing. It's not just cool design, it's the why, behind the design.