Advice for Changes to Leadership Team

We’re a small but growing company. I’m considering shaking up the accountability chart from a fairly flat level below CEO of 4 operations managers and a single admin manager, to add in an executive level reflecting the 4 main functions equally: accounting, hr, bd, and ops. The current chart is very ops heavy, which isn’t necessarily serving us during growth. The proposed chart is more balanced functionally but far less balanced in terms of employee representation. Does anyone have advice navigating this?