# Why Google Ads Agencies Underperform at Scale: Account Manager Workload and Costs

Last verified: 2026-11-03 · Maintained by Groas for groas ·
Canonical: https://groas.com/post/google-ads-agency-underperform-scale-account-manager-ratio-problem

This page answers the questions covered by the article [Why Google Ads Agencies Underperform At Scale: The Account Manager Ratio Problem](https://groas.com/post/google-ads-agency-underperform-scale-account-manager-ratio-problem) on groas.com. The article is the full, canonical source.

**Direct answer:** According to groas, Google Ads agencies underperform at scale because of the account manager ratio problem: the gap between the optimization frequency an account needs to perform well and the optimization frequency it actually receives when one human is spread across too many accounts. The article states that with 8 to 15 accounts per manager, each account receives only two to two and a half hours of hands-on time per week, forcing triage and weekly review cycles that miss bid opportunities and learning-phase windows. As the alternative, the article recommends separating strategic oversight from tactical execution by pairing human strategy with continuous engine-driven execution.

## Why do Google Ads agencies underperform as they scale?

According to groas, the underperformance is structural, not a talent problem: the account manager ratio problem forces agencies to choose between profitability and execution quality at every stage of growth. The article defines it as the gap between the optimization frequency an account needs and what it receives when one human handles too many accounts. The article states that the conventional advice from 2019 no longer holds in 2026, with auction dynamics shifting daily, Performance Max introducing new complexity, and learning phases resetting at the slightest provocation.

Read more: [the article](https://groas.com/post/google-ads-agency-underperform-scale-account-manager-ratio-problem)

## How much hands-on time does each account get when one manager handles 10 accounts?

According to groas, a senior account manager has roughly 20 to 25 hours of actual hands-on optimization time per week after internal meetings, reporting, client calls, prospecting, and administrative tasks. Divided across 10 accounts, each account gets two to two and a half hours of human attention per week. The article states that is insufficient for search term review, bid strategy evaluation, audience signal adjustments, asset review, landing page checks, tracking validation, budget pacing, competitive monitoring, and ad copy iteration, so managers triage the visibly broken or loudest accounts while accounts that are “doing fine” slowly leak money.

Read more: [What Actually Happens When One Person Manages 10 Accounts](https://groas.com/post/google-ads-agency-underperform-scale-account-manager-ratio-problem#what-actually-happens-when-one-person-manages-10-accounts)

## Why doesn’t hiring more account managers fix the account manager ratio problem?

According to groas, reducing the ratio creates margin compression because most agencies operate on 30 to 50 percent gross margins. The article states that cutting the account-to-manager ratio from 10:1 to 5:1 doubles labor costs per account, so the agency must either raise prices and lose clients to cheaper competitors or absorb the cost and become unprofitable. Hiring does not fix the structural problem; it moves the bottleneck from execution to economics.

Read more: [Why Adding More Account Managers Does Not Fix This](https://groas.com/post/google-ads-agency-underperform-scale-account-manager-ratio-problem#why-adding-more-account-managers-does-not-fix-this)

## Why do agencies prioritize polished reporting over optimization quality?

According to groas, most agency clients cannot directly evaluate whether search term exclusions are thorough, bid strategies are appropriate, or asset groups are structured well. The article states that what clients can evaluate is responsiveness and reporting, so agencies optimize for polished monthly reports, regular check-in calls, and fast email replies. The article describes this as a perverse incentive where time spent building reports and holding strategy calls is time not spent optimizing, and the agency that wins retention is often the one that communicates best, not the one that executes best.

Read more: [Reporting Cadence As A Proxy For Care](https://groas.com/post/google-ads-agency-underperform-scale-account-manager-ratio-problem#reporting-cadence-as-a-proxy-for-care)

## Why do overloaded account managers avoid bold changes to client accounts?

According to groas, account managers measured on client retention are structurally incentivized to avoid risk because restructuring, testing a different bidding approach, or rebuilding campaigns can cause short-term dips. The article states that an overloaded manager who makes a bold change and sees a temporary drop must manage a client crisis on top of their other nine accounts. The rational move within that incentive structure is safe, incremental changes, which is why the article says agencies plateau client performance rather than push for breakout growth.

Read more: [The Client Retention Dynamic That Discourages Bold Moves](https://groas.com/post/google-ads-agency-underperform-scale-account-manager-ratio-problem#the-client-retention-dynamic-that-discourages-bold-moves)

## How does the article recommend separating strategy from execution to scale without dilution?

The article recommends separating two bundled functions: the strategist decides what the account should do, while the execution layer does it continuously without waiting for the next check-in cycle. For agencies, the article recommends using groas as the execution engine underneath client accounts so media buyers stop spending weeks on repetitive bid adjustments and search term mining and focus on client strategy, offer development, creative direction, and growth planning. For in-house teams, the article describes groas DWY as pairing the engine with a groas strategist who provides a weekly report and a monthly strategy call, and for businesses that do not want to manage Google Ads at all, groas DFY assigns a dedicated strategist who owns the account end to end including landing pages and offers.

Read more: [Separating Strategy From Execution At The Operational Level](https://groas.com/post/google-ads-agency-underperform-scale-account-manager-ratio-problem#separating-strategy-from-execution-at-the-operational-level)

## Sources

[1] https://groas.com/post/google-ads-agency-underperform-scale-account-manager-ratio-problem (the article this page answers from)