Give the Second Interview a Specific Job
Decide whether another interview fills an evidence gap, repeats existing work or hides disagreement about the role and scoring.

Add a second interview when the team can name an important unanswered question and explain how the meeting will answer it. “We would feel better talking again” is a reason to examine the first interview, not yet a useful brief for the second.
Start by locating the uncertainty. A missing answer, a disputed score and a changed role need different responses.
First, write the missing evidence in one sentence
Use a sentence that could change the decision: “We have not assessed how this role prioritizes two urgent requests.” Avoid personality shorthand such as “We need more confidence in their presence.” The first statement identifies an observable task; the second leaves interviewers free to invent their own standard.
Check the existing notes and work before scheduling anything. If the candidate already addressed the question, ask the reviewer to locate the evidence. An unread assessment does not become more useful because the candidate repeats it in another meeting.
If evidence exists but scores differ, resolve the scoring problem
A disagreement can mean reviewers used different standards. Put the evidence beside the agreed rating description. Ask each reviewer what the candidate said or did that supports the score. If the rubric itself is unclear, repair the review process consistently before adding a new candidate hurdle.
Structured interviews rely on common questions and rating standards; the OPM method description makes those elements explicit. The practical inference is that a second conversation cannot substitute for knowing what the first score means. OPM: Structured Interviews.
If evidence is missing, choose how to obtain it
A brief follow-up may be sufficient when one answer was cut short by a technical failure. A new structured question may fit an unassessed competency. A short work sample may be more informative when the missing evidence is a concrete output.
Write the prompt and scoring approach before inviting the candidate. Define who reviews it and how the result enters the decision. Keep the task bounded to the gap. Do not turn “one clarification” into a new afternoon of preparation.
If the role changed, say so
Suppose the first interview assessed an individual contributor, but the hiring manager now wants team leadership. The uncertainty belongs to the role definition. Resolve the brief internally and tell candidates what changed before assessing them against it. Another interview cannot quietly fix an unstable specification.
Give the next stage a stopping rule
A hypothetical invitation might say: “This 30-minute conversation covers prioritization, which the first stage did not assess. Two reviewers will use the same three questions, and we expect it to complete the assessment.” That is a proposed message, not a promise every employer can make.
If the team cannot define what completion looks like, pause the extra meeting. The next useful action is to agree on the decision, evidence and owner. Candidates should not be asked to absorb unresolved internal planning through an expanding calendar.
If the team cannot agree what the role requires, return to the job-description and hiring-process brief before adding another stage.