How often to reevaluate incumbent tools

AI engineering tools are evolving fast. New coding assistants, debugging agents, and automation platforms emerge every month. Engineering leaders want to take advantage of these innovations while avoiding costly experiments that create more distraction than impact.

In this episode of the Engineering Enablement podcast, host Laura Tacho and Abi Noda outline a practical model for evaluating AI tools with data. They explain how to shortlist tools by use case, run trials that mirror real development work, select representative cohorts, and ensure consistent support and enablement. They also highlight why baselines and frameworks like DX’s Core 4 and the AI Measurement Framework are essential for measuring impact.

Where to find Laura Tacho: 

• LinkedIn: https://www.linkedin.com/in/lauratacho/

• X: https://x.com/rhein_wein

• Website: https://lauratacho.com/

• Laura’s course (Measuring Engineering Performance and AI Impact): https://lauratacho.com/developer-productivity-metrics-course

Where to find Abi Noda:

• LinkedIn: https://www.linkedin.com/in/abinoda  

• Substack: ​​https://substack.com/@abinoda  

In this episode, we cover:

(00:00) Intro: Running a data-driven evaluation of AI tools

(02:36) Challenges in evaluating AI tools

(06:11) How often to reevaluate AI tools

(07:02) Incumbent tools vs challenger tools

(07:40) Why organizations need disciplined evaluations before rolling out tools

(09:28) How to size your tool shortlist based on developer population

(12:44) Why tools must be grouped by use case and interaction mode

(13:30) How to structure trials around a clear research question

(16:45) Best practices for selecting trial participants

(19:22) Why support and enablement are essential for success

(21:10) How to choose the right duration for evaluations

(22:52) How to measure impact using baselines and the AI Measurement Framework

(25:28) Key considerations for an AI tool evaluation

(28:52) Q&A: How reliable is self-reported time savings from AI tools?

(32:22) Q&A: Why not adopt multiple tools instead of choosing just one?

(33:27) Q&A: Tool performance differences and avoiding vendor lock-in

Referenced:

• Measuring AI code assistants and agents
• QCon conferences
• DX Core 4 engineering metrics
• DORA’s 2025 research on the impact of AI
• Unpacking METR’s findings: Does AI slow developers down?
• METR’s study on how AI affects developer productivity
• Claude Code
• Cursor
• Windsurf
• Do newer AI-native IDEs outperform other AI coding assistants?