QAn employee in our company is being transferred to my team. She's often very negative; how do I keep this from infecting my team and damaging morale?
ABe direct about your expectations and consistent with your feedback to address this situation.
The inner game
Keep past experience with this employee in mind, but also try letting her come in with a clean slate. Imagine how you'd want to be treated if you were joining a new team, and set aside negative biases. Some of the negative attitude she's shown may have been situational, so a fresh start may serve you the best.
That said, if you have direct experience with her (not hearsay or gossip), you'll want to think about the ways that a negative attitude could occur with your team. For example, if you've seen her be dismissive of others' ideas, plan to keep an eye out for this in team meetings or brainstorming sessions.
Also considering the specific behaviors that you're concerned about, identify tactics you've used in the past. If they were successful, add them to your toolbox for managing her. If they were not, assess for ways you could improve them. Reflect on the approaches others have used as well, and learn from the skills of those around you.
Finally, envision successful outcomes. What does it mean to you to maintain your positive team experience? One option may be a transformation that helps her become a positive member of the team. However, if that doesn't occur, what does success look like?
The outer game