Collaboration is key in being successful and multiplying your reach in being a leader. the ability to allow others to be included and feel as if they are actually part of an idea and have some skin in the game will always create more buy in and ownership then the old "because i said so mentality". successful collaboration allows ideas to grow and morph with the input of others who may see things subjectively in ways you might not. a recent example of this was a project i recently worked on for employee engagement that was not very inclusive as it was more catered to one specific department and not the company as a whole. collaborating with other people in other departments helped us review and update the project to be inclusive to all employees and get a much greater response then if we would have not.