Why winging it feels tempting
Winging it feels natural. It can make the answer sound less scripted and help the candidate respond to the exact wording of the question.
The problem is not flexibility. The problem is lack of preparation. Without prepared evidence, the answer can drift, become too long or miss the result.
What structured answers do
Structured answers help the interviewer follow your evidence. They make it easier to understand what happened, what you were responsible for, what action you took, what result followed and why the example matters for the role.
Structure does not mean memorising
Memorised answers can sound rigid. Structured preparation is different. You prepare the example, not every word.
You know the context, your role, your action, the result and the relevance. Then you answer naturally depending on the question.
How ACT helps
ACT creates role-specific practice and gives preparation-only feedback after the session. That feedback can help you see whether your answer was structured, whether the evidence matched the role and what to practice next.