Just like a bad apple can ruin the whole bunch, a bad person can ruin a whole team. So watch out for people who aren't on board with the group goals today. Staying focused on the greater good is not easy for some (selfish) people to do, so you will have to help them along. If you don't, their negative energy could really bring everyone down. Do not let them force everybody's momentum downhill. You're all better than that!