Account Management for Agencies: The 60/30/10 Rule
There is an interior design principle that says a room should follow a 60/30/10 color ratio.
- 60% is the dominant color.
- 30% is the secondary color.
- 10% is the accent color.
The idea is simple. A room needs a clear foundation, a supporting layer, and a small amount of contrast or personality. When the ratio works, the room feels balanced. When one part takes over, the room can feel off.
I think account management inside an agency can work the same way.
For years, agencies have tried to figure out how to manage clients without overloading one person, creating confusion, or making the client feel passed around. The challenge is that clients need a clear main point of contact, but the agency also needs more than one person aware of what is happening.
That is where the 60/30/10 model makes sense.
60% is the main Account Manager.
This person owns the relationship. They lead meetings, understand the client’s goals, manage communication, and make sure the work keeps moving forward. They know the client’s history, preferences, pain points, and expectations.
The client should know this person is their primary contact.
30% is the secondary support person.
This could be another account manager, a designer, a developer, a strategist, or someone else who is regularly involved in the work. Their role is to stay close enough to the account that they understand what is happening and can step in when needed.
They may help with meeting notes, follow-up items, production questions, technical details, creative direction, or quality control.
10% is the flex role.
This could be a junior person learning the account, a senior person giving oversight, or another specialist who needs light visibility. They may not be involved every week, but they have enough context to understand the client and contribute when needed.
That 10% role matters more than it might seem.
It creates redundancy. It helps train team members. It gives senior leadership a way to stay aware without taking over. It also gives the agency another set of eyes on the account.
The goal is efficiency, but it is also protection.
If the 60% person is sick, on vacation, overloaded, or unavailable, the agency does not have to cancel a client meeting or leave the client hanging. The 30% and 10% people can attend, take notes, keep the conversation moving, and relay the right information back to the main Account Manager.