“…This intensified attention stems from the role employee engagement plays in sustaining competitive advantage, which could lead to improved business results and successful organisational performance (Attridge, 2009;Barnes & Collier, 2013;Fearon, McLaughlin & Morris, 2013;Gruman & Saks, 2011;Jeung, 2011;Klassen, Aldhafri, Mansfield, Purwanto, Siu, Wong & Woods-McConney, 2012;Lewis, 2011;Lockwood, 2007;Mills, Culbertson & Fullagar, 2012;Sustainable employee engagement, 2013;Van Rooy, Whitman, Hart & Caleo, 2011). Engagement, which is a complex concept (Lockwood, 2007), has been described as "slippery" (Schaufeli & Salanova, 2011) and different reasons are advanced for the elusiveness of the concept.…”