28. The local authority provider must ensure that at all times a sufficient number of suitably qualified, trained, skilled, competent and experienced staff are deployed to work at the service, having regard to—
(a)the statement of purpose for the service,
(b)the care and support needs of children,
(c)the need to support children to achieve their personal outcomes,
(d)the need to safeguard and promote the health and welfare of children, and
(e)the requirements of these Regulations.