Single-handed management of a marketing plan primarily affects which aspect of ad delivery?

Single-handed management of a marketing plan primarily affects the frequency of delivery. When an individual manages all aspects of a marketing plan alone, they have control over how often ads are served to the target audience. This includes setting the pacing of ad impressions, determining the number of times an ad is shown to a particular user, and managing the overall exposure of various ads within the campaign.

The frequency of delivery is crucial because it directly impacts audience fatigue and ad effectiveness. If the frequency is too high, it can lead to diminishing returns as consumers may become annoyed and start ignoring the ads. Conversely, if the frequency is too low, it may not sufficiently reinforce the message or drive the desired action. Therefore, a single individual managing the plan has a significant influence on frequency to strike the right balance for optimal campaign performance.