The other day a client showed me a pitch deck that a management consulting firm had prepared for them. Having been a consultant myself, I recognized it immediately: structured, organized, logical, dense. Great to solve a problem and/or convince an analytical audience with lots of facts.
Not good enough to make the sale: a good sales presentations needs to touch both the heart and the mind. Consulting presentations touch the latter, not the first.
Instead, put the consulting deck aside and start from scratch. What is the story you would like to tell? Sketch visuals without borrowing / Frankensteining / recycling charts from the consulting presentation.