We have partnered with some big companies (McDonald’s, Frito-Lay, Mattel, etc.) to do collaborations and licensing deals. Each time, I had to fight for final approvals over creative direction, advertising, and products. Sometimes it stalled the release of the product or campaign, but it was ultimately worth the trouble in order to maintain the integrity of my brands. My advice is to remain steadfast in your values and product direction, especially when working with other companies.
