A messy account does more than make reporting annoying. It changes how clearly the account can read creative. Strong ads can look weaker than they are when the structure around them is fighting the learning.
There is a version of account structure that looks responsible from the outside: lots of campaigns, lots of ad sets, lots of tests, lots of naming. It feels controlled because every idea has its own place.
But after enough time, the structure stops reflecting strategy and starts reflecting history. Old tests remain. Temporary fixes become permanent. Similar audiences compete against each other. Creative gets spread across too many places to generate clean signal.
That is when the account becomes harder to read. Not because the buyer changed overnight, and not always because the ads got worse. The account is trying to learn through too many competing containers.
Consolidation is not about being minimalist for the sake of it. It is about making sure budget, creative, and feedback are grouped in a way that gives the account a fair chance to understand what is working.
Bad structure rarely announces itself clearly. It usually shows up as vague account behavior: inconsistent tests, winners that do not scale, fatigue that feels too early, or too much time spent explaining performance after the fact.
The goal is not to merge everything blindly. Some separation is useful. The job is to preserve the differences that teach you something and remove the containers that only make the read harder.
Fewer campaigns is not the goal. Clearer learning is the goal. That distinction matters because a structure can look cleaner and still hide differences the creative system needs to read.