Recently special projects manager Ian Steer, who had been heavily involved in the Homebush and Pou projects, resigned and has now ended his employment with the council.
Mr Borren said the main focus of the three new staff would be to support staff already involved in projects to ensure the council was setting up and following "best practice" in the way it managed and oversaw projects.
"It is fair to say we have not always been as planned as we should be and some projects have not met timelines as I would expect."