Studies show that successful advertising agencies tend to have a shared sense of purpose with their clients through collaboration. This includes a common set of client objectives where agencies feel a shared sense of ownership of the strategic process. Successful advertisements start with clients building a good relationship with the agencies and work together to figure out what their objectives are. Clients must trust the agencies to do their jobs correctly and accordingly with the resources they have provided. Breakdowns in relationships were more likely to occur when agencies felt undermined, subjugated or even feel they don't have an equal status. Traditionally advertising agencies tend to be in a position to take the lead on projects but results are best when there is a more collaborative relationship.