Most agencies don't choose their clients. Clients choose the agency, and the agency, eager for the revenue, says yes. Choosing clients on purpose, as an ongoing practice, is something far fewer agencies actually do, and it's worth treating as a discipline rather than something that only happens once a bad relationship finally becomes unbearable.
The Cost of Never Curating
Every agency principal has had a client who was a joy to work for. The creative department did its best work for them without dreading the review. They pushed back on feedback, but fairly. They paid on time without a fight. Those clients exist. They're harder to find than they used to be, but the chemistry is still out there when an agency looks for it rather than taking whatever comes first.
Most agencies take whatever comes down the road, understandably, since there's no shame in prioritizing financial stability. But that instinct, unmanaged over time, builds toward a bigger problem: a team that stops caring about the work. This happens most in agencies where the client roster was never actively shaped, just accumulated. Eventually the team stops fighting for good work on a bad account. They absorb the friction, lower their standards, and let the relationship coast. That costs the agency more than it seems to, since the entire business rests on the energy and ideas its people bring to the work. People and ideas are the only asset an agency actually has.
Treat the Roster Like a Portfolio, Not a List
The fix isn't one hard conversation with one bad client. It's treating the full client roster as something to actively manage, the same way a principal manages cash flow or staffing. That starts with sitting down, as a team, and defining what an ideal client mix looks like for this specific agency. Not a generic checklist. What actually works, given the agency's strengths, its culture, and the kind of work it wants to be known for.
Once that picture exists, the roster stops being a fixed list and becomes something the agency can reshape on purpose. Pursue the clients that fit the picture. Be honest about which current relationships don't, instead of letting inertia decide the mix.
Second Wind has written before about the specific criteria that separate a great client from a draining one: decision-making structure, chemistry, an understanding of what good work actually looks like, a willingness to pay fairly and on time. Those criteria still apply. What's worth adding is the discipline of revisiting them, not just when a new relationship starts, but as a standing audit of the roster as a whole.
Make It an Annual Habit
Set aside real time, once a year at minimum, to look at the full client list and ask which relationships fit where the agency wants to go, and which have just been carried forward out of habit or fear of the revenue gap. That's not a one-time fix. It's a standing practice, the same way a strong agency revisits its financials or its staffing plan on a regular cycle.
There's no reason to stay tied to relationships that don't serve the agency well. Spend real time over the next year reshaping the client list on purpose, and the agency comes out the other side with better work, a healthier team, and a stronger bottom line.
