What (a) has been the compliance rate by government departments regarding the submission and implementation of the service delivery implementation plans (SDIPs) in the (i) 2018-19, (ii) 2019-20 and (iii) 2020-21 financial years and (b) role does her department play to ensure that (i) the submitted SDIPs are implemented and (ii) better alignment and coordination in the delivery of services by individual government departments is achieved?