I suggest you utilize employees in the City who know what their jobs are, and already have the skills needed to produce, as a team, what is needed (from each other and management) to improve efficiences in the field or in their work environment. Highly paid, outside consultants, are not always needed. What is needed is a bridge between management and the "workers" - the people who do the work know exactly what needs to be done, and 99% of the time they already have the solutions. Paying outside consultants makes a statement "You don't know what your doing so we will pay someone to tell you what to do!" Often it is just wasted money!
Effective Leadership LISTENS and INCORPORATES from their front-line workers their ideas, suggestions, talents, to make improvements. USE YOUR "inside consultants!"