It should be noted that several types of consultancies coexist in the public sector market, working at different administrative levels, in different fields and for different durations, which complexify the question of their impact on the public sector. At the governmental level, use of consulting services despite in-house expertise could suggest, for Marc, a lack of trust in the administration’s skills. This could have an impact on the motivation of civil servants, who may feel an omnipresence of consultants in their workplace. As reported in the Senate report, employees of the public agency “Santé publique France” sometimes resented the presence of McKinsey’s consultants during the Covid crisis in 2020. Yet the studies produced by consulting firms largely rely on civil servants’ knowledge of public policy.
Consultancies have the capability to reshape and project civil servants’ knowledge into a strategic view, or to “cannibalize” it, in the words of Marc. According to M. Mazzucato and R. Collington in The Big Con, use of consultants in the public sector can “directly erode existing in-house knowledge and institutional memory: the less an organization does something, the less it knows how to do it”. This drain on knowledge and skills can increase the dependency on consulting firms, which is most likely – and already – the case with information system services. The report from the French Court of Audit in 2023 revealed that three quarters of services outsourced to consulting firms in 2021 were in the IT field.
More generally, one might well ask whether the high level of expenditure involved in hiring consulting firms could have been better invested in recruiting new talent.