Full context:   Models of "small" group development are also related to those of organization development but operate at a different level of analysis. Despite their differences, both areas of work attempt to understand patterns and processes of collective change. Both fields should strive to develop "process-oriented" theories, which according to Poole and Van de Ven (2004): A number of questions still remain unanswered in the study of group development over time. As McGrath and Tschan (2004) stated, some of these challenges include: