Health in France asks public hospitals to promote quality of working life (QWL), seen as a performance factor. Consistently with empowerment literature, they define QWL as giving workers mastery over their working life. The problem is, French hospitals follow a bureaucratic model, defined by a managerial culture of control and a stratified organization, which weakens mastery of their work, and hinders their commitment and performance. Main objective of CHRYSALIDE, is to create a managerial and organizational transition program of 1 year, and to test its effect at two years on workers empowerment in an university hospital Sub-Center (SC), in comparison with another SC from the same University Hospital Center (CHU) in a randomized controlled study design.

The main objective of CHRYSALIDE is to implement an easy-to-replicate intervention program of 1 year, in order to promote empowering behaviors in directors and front line supervisors in SC, and to test its impact at two years on workers scores of structural empowerment, in comparison with another SC from the same University Hospital Center (CHU).

The secondary objective is to assess the effect of the intervention on psychological empowerment.

To answer to the main objective, quantitative data will be collected three times during the project: Before the implementation, directly after the intervention, and 1 year after the end of the intervention, or 2 years after the beginning. To improve our understanding of what happened during the intervention, a systematic ethnographic report will be done by the investigators and the facilitators engaged in the intervention.

Quantitative data collection will occur during the occupational health visit that is required to be done every two years considering French legislation. For the need of the study, visits will be done every years, and scheduled to match with the beginning and the end of the intervention.

Quantitative data consist in (1) self-reported questionnaires, (2) standardized assessment by medical practitioner during the visit, (3) institutional indicators routinely collected by the SC.

Inclusion Criteria:

• Working in one of the care units of the SC that has been randomly selected to benefit from the intervention.

Exclusion Criteria:

Criteria for not including UHPs

• Capacity-building or major reorganization planned during the study period. Criteria for not including services
• Chiefdom of the service opposed to the intervention.
• Strike movement in the team during the inclusion phase. Criteria for not including professionals
• Refusal to participate in the study.
• Physical or psychological condition that prevents the completion of questionnaires.

all professionals working in the care services of the experimental and control UPHs.