i think that choosing one or even a handfull of projects will not be helpful because we all have our favorite project. if we rotate the top project we can make everyone happy and gain members. if we spend one month on one project then rotate to another one, it should bump our position a great deal even in one month and then the members who always run that program will mantain the postition. we would lose people if we tell them not to run their favorite program because we didnt have enough support for it.