Final answer:
The challenge not found in the research on managing multicultural teams is increased creativity and innovation. Instead, the challenges include communication barriers, conflict resolution differences, and stereotyping and prejudice.
Step-by-step explanation:
In the research highlighted by Brett, Behfar, and Kern (2006), the challenge that is NOT found in managing multicultural teams is c) Increased creativity and innovation. The challenges identified in their research include a) Communication barriers, b) Conflict resolution differences, and d) Stereotyping and prejudice. These challenges relate to difficulties in understanding cultural nuances and overcoming preconceived notions that may affect teamwork and collaboration.