Although my finance colleagues were like:"Hey, just make a new version as you want! No matter what, I believe that it's gonna be better than this one!". But I still chose to follow the regular design process than directly jumping into just visual modifications. First step first, identify problems through interviews and observations, then listed potential solutions:
My design approach is driven by informed assumptions and strategic insights, inspired by leading market products
The primary thing is making content readable, that's the most often heard complaint. I made a small visual system for them, with layout grids, colors, and fonts. For icons, we already have a set, so I just used that directly. Other details, I won't elaborate further here since it's more clear to just check it directly.
It has less than 20 pages, main purpose is showing finance report for a quick scan
It's a quick internal design task, I had other tasks while I was doing it. I guess that is also the case for most companies. Many of them have no full-time responsible designers for their intranet, or they just purchased a horrible ERP, so all their employees are suffering. The management level should notice that if you really want to boost efficiency, maybe improve your intranet rather than only eliminate positions. If all internal tools are fast enough, then there's no need to overhire.