Final answer:
Carrie should begin by setting performance objectives for the MBO system nationwide.
Step-by-step explanation:
The first step Carrie should take to institute an MBO (Management by Objectives) system nationwide is to Set performance objectives. MBO is a goal-setting framework that involves setting specific and measurable objectives for employees to achieve, and performance appraisals are an essential component of MBO. By setting performance objectives, Carrie can define the targets and outcomes she expects from employees and align them with the overall goals and strategies of the company.