“…Jansen, 2004;Jansen & Hofmann, 2011) and phases (Prochaska, Redding, & Evers, 2002). These variations call for, and have an impact on, different forms and types of leadership (Van de Ven & Poole, 1995;Weick & Quinn, 1999), which suggests that different leadership behaviours will be required over the life of the change and challenges the assumption that an individual change leader will be effective throughout (Morgeson et al, 2010); there are no universal leaders (Yukl, 1994).…”