Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:…within health care organisations within Victoria showed a general lack of strategic HRM, including HPWS, within the health care organisations of this state (Leggat et al., 2008), with larger hospitals demonstrating fewer aspects of HPWS than smaller community health services (Leggat et al., 2006).
Category: