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Taming demand variability in back-office services

Managers in many back-office processing environments can make them more flexible and remove waste by organizing transactions or activities according to their variability.

Situation

Many back-office processing and sales support units in banking, health care, insurance, telecommunications, and other service environments struggle to maintain high operational efficiency in the face of extremely variable customer demand. For example, a global asset manager’s transfer agency (an internal group that processed 50 types of account-related transactions) had trained all its employees to handle every type of transaction, thinking that the resulting flexibility would more than offset higher training costs. As the company expanded its operations globally, however, executives were surprised to find the productivity—and service levels—of the unit’s teams eroding. At the busiest periods, up to 80 percent of them failed to meet their service-level agreements.

Complication

When the executives looked more closely, they found that the variety of tasks the employees undertook actually made it difficult for them to meet the promised service levels and for management to measure or manage their performance accurately. Frontline workers trained to do everything, for example, didn’t encounter some tasks often enough to do them really well. Certain workers therefore cherry-picked the easier assignments—a pattern that damaged morale and delayed the harder transactions. Worse, customer inquiries about service delays added to the volume of incoming calls, slowing turnaround times for all transactions and resulting in expensive overtime.

Resolution

To determine the unit’s staffing requirements, the company measured the volume and frequency of the 50 transactions, ultimately grouping 30 of them into five sets by level of difficulty. The sets were distributed to “baseload” teams that handled the same assignments each day, thus simplifying staffing and performance management. The transactions in each set were similar enough for the company to train and manage these employees effectively, yet varied enough for them to avoid boredom. As their skills improved, they could graduate to baseload teams that handled increasingly difficult transactions. In addition, a small swing team was created to handle daily volumes exceeding the forecast baseload levels for the 30 transactions, as well as the remaining 20 infrequent (and more challenging) ones. This arrangement helped the unit meet its service-level deadlines in nearly all cases while reducing its frontline staff and management by 25 percent and overtime by 90 percent.

Implications

Power companies use “peaker” plants to manage spikes in electricity demand flexibly and cost-effectively. Likewise, managers in many back-office processing environments can make them more flexible and remove waste to boot by organizing transactions or activities according to their variability and then assigning different ones to baseload or swing teams (exhibit). The first step is to develop a detailed understanding of customer demand, since its patterns may help managers group operational responsibilities more efficiently. (Demand for tasks A, C, and D, taken together, say, may be less variable than demand solely for task B.) The correct principle for organizing tasks can vary by context; for example, it can make sense to group them by customer segment, value at stake, degree of difficulty, or regulatory requirements. Finally, the identification of baseload tasks and teams helps companies to create career paths for frontline workers, while the greater degree of specialization shortens learning curves for new employees—a benefit for companies that hope to consolidate sites or move activities offshore.

About the Authors

Dan Devroye is an associate principal in McKinsey’s Washington, DC, office, where Andy Eichfeld is a director.

Recommend (24)
  • 1 OCTOBER 2009
    Natraj Thangavelu
    SVP
    Integra
    Chennai, Tamilnadu, India

    This is so relevant to the situation we face in our organisation...

    .
    Natraj Thangavelu
    SVP
    Integra
    Chennai, Tamilnadu, India

    This is so relevant to the situation we face in our organisation where we do publishing services to the world’s leading publishers. Despite a certain planning activity that we do as a team for predicting monthly publishing volumes, there are unexpected spikes and tanks that unsettle the production shop floor that needs different skills for different activities. Perhaps we should take a leaf out of the above piece.

    .
  • 27 SEPTEMBER 2009
    Shankar Shridhar
    Director
    EQIS Pty Ltd
    Melbourne, Australia

    This is interesting. I see a parallel to the Toyota Production System where line balancing in a complex assembly environment is crucial...

    .
    Shankar Shridhar
    Director
    EQIS Pty Ltd
    Melbourne, Australia

    This is interesting. I see a parallel to the Toyota Production System where line balancing in a complex assembly environment is crucial to achieve "Takt" times. To do this, every line will have a Team Leader and some planned redundant staff who immediately intervene whenever a build-up or slow-down occurs at a station so as keep the overall line balance. This philosophy, I suppose, could be used wherever there are transactional activities with a level of forecasted repetitiveness.

    Ideally, organisations should undertake some advanced planning using historical data and try to develop a forecast that gives an indication of variability in the months ahead (for example, simple variance analysis using six-sigma tools). This will help companies develop a resource model that enables positioning teams (the number of swing teams could increase or reduce depending on how much variability is forecasted, for instance) hence optimising resource utilization and a better balancing of workloads. Ideally, team leaders and schedulers should have competency in the application of simple statistical techniques and in short and long-term data analysis.

    .
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