The“blackbox”bywhichstrategichumanresourcemanagement(SHRM)affectsfirm performance has been the focus of the SHRM field to date (Zhao et al., 2011). Although previous SHRM literature has paid more attention to discussing high performance work systems, HR systems for top management team (TMT) remains largely underexplored. Collins and Clark (2003) define human resource practices to develop TMT social networks as “network-building HR practices