Britney, a manager in an advertising firm, was assigned a team and asked to come up with ideas for an advertising campaign. Britney briefed her team and outlined the purpose of the meeting clearly, after which she asked the members to individually generate ideas and bring their list to the next meeting. In the second meeting, the ideas were compiled, doubts clarified, and ideas built-on, after which the members were then asked to individually rank the ideas and submit the list to Britney, who tabulated the scores and created a list of the five highest rated ideas. Britney used _____ to generate the ideas.