In "The Complete Idiot's Guide" we read "Project managers who are technically knowledgeable are sometimes prone to interfere with the work of team members to the point that they actually become a hindrance to the team. Remember, as a project manager your job is to lead and manage the project."
Lead and manage the project? Lead the team or manage the team? Who gets better results, the leader or the manager? Are the terms interchangeable? If not, why not? If so, why?
Think of bosses you have had. Were they managers or leaders? Which was easier to work for? Which team was more effective?
Take a stand! Leader or manager? Who will be more successful, and why? Feel free to add your own research.