My fiance and I have been having some problems when keeping in communication with one of his groomsmen. We have been trying to get him to send his measurements for his tux. My fiance has had multiple failed attempts at reaching him throughout this time frame, and even the best man has only heard that he would send his information over. But as we are starting to get closer to the wedding I'm wondering when we need to ask him to consider stepping down. I already had a bridesman step down due to financial issues and we are now even (we previously had 7 bridesmaids and 6 groomsmen). So I guess I am just worried about a good idea of when we need to let him know to step down?