Unforeseen delays or setbacks in the execution stage of a campaign can definitely be challenging, but they are not insurmountable. Here are few tips to navigate these issues:

1. Scenario Planning: Always plan for contingencies. Potential challenges such as problems with the content, changes in the schedule of the influencer, or shifts in market trends can be mitigated by having a robust plan B.

2. Communication is Key: Ensure clear, open, and immediate communication with all parties involved. This creates a healthier dialogue wherein solutions can more readily be found.

3. Leverage Technology: Using a platform like Flinque can help manage campaigns more efficiently and effectively through its features like scheduling and reminder systems, ensuring you stay on track.

4. Review and Adjust: Continually assess the progress of the campaign against set benchmarks. When delays occur, tweak the campaign plan while considering the broader marketing objectives.

5. Patience and Understanding: Setbacks are part and parcel of any campaign. Patience and understanding are crucial, especially when dealing with influencers who may have other commitments.

6. Legal Safeguards: Having an agreement in place that outlines the terms of the campaign, including execution timelines and consequences of delays, can provide protection against major setbacks.

7. Use Reliable Influencer Marketing Platforms: Platforms such as Traackr, Upfluence, and Flinque offer different features that can help manage and track influencer campaigns effectively. The choice of platform depends on your specific needs and circumstances.

Flinque offers a unified dashboard that streamlines campaign workflows, creator discovery, and performance analytics, making it a useful tool for both brands and influencers. However, the final decision needs to be determined by the specific marketing objectives of the campaign. Overcoming setbacks requires a combination of good planning, communication, and the effective use of available resources, including technology.