Darren was assigned to help Perry by coaching him. Perry didn't have a big enough budget for marketing there in decided it would be best to hear Perry and his ideas on options to solving the issue. After they both collaborated and pulled together some viable options, they had to make a decision. They compare the cost to both time and resources of each option, while also taking the potential return on the investments into consideration. They eventually came to the decision to focus the marketing strategy on a central medium rather than spread it out more thinly. The marketing venture was a success.
And it was because of the collaboration of the two of them.