Formulating the central message

You and your colleague are tasked with giving a presentation to higher management at a hospital about your analysis of the effect of certain investments on the average length of hospital stay. Your colleague has crafted the central message as follows:

To decrease the average length of hospital stay, we need to determine which investments are most likely to reduce the length of hospital stay. Our analysis shows that investments in advanced CT and MRI scanner equipment are the most important factors influencing hospital stay.

You notice that something is not quite right. Which part is missing from this central message?