It is tempting to start fixing the first problem you see. We score every area first, because the first problem you see is rarely the one that matters most.
A score turns an opinion into something a whole team can look at and agree on. It also gives you a baseline, so progress shows up as a number rather than a feeling.
Then we sort by impact
Once everything is measured, the order of work follows from the gaps between target and current score, not from how easy a fix happens to be.