Diagnose Strengths, Gaps, and Aspirations
Senior-to-Principal Growth OS
Overview
Diagnosis before development
A growth diagnosis is a shared, evidence-based view of strengths, limiting gaps, aspirations, and available opportunity. Without it, managers assign generic “stretch work” and engineers collect activities that may not change capability or impact.
Diagnosis is not clinical language and does not label a person's fixed traits. It asks what behavior is reliable now, what constraint matters for a real next-scope outcome, and what experiment can produce better evidence.
Start with evidence, not adjectives
Evidence describes an observable situation, behavior, and effect. Adjectives such as “strategic,” “executive,” or “not influential enough” hide what actually happened and make improvement difficult.
| Adjective | Evidence-based rewrite |
|---|---|
| “Very strategic” | Connected the storage decision to a two-year product constraint and stopped an unnecessary migration |
| “Not influential” | Two service owners left the review unable to explain the decision or their role |
| “Strong mentor” | Three engineers independently led later designs using the decision method she taught |
| “Needs more visibility” | The calibration group lacks evidence of his role and outcomes across the billing program |
| “Not Principal yet” | Has strong domain direction evidence; no sustained evidence yet of organization-wide problem selection |
Ask three questions for every claim: What was observed? What effect followed? Who or what can corroborate it?
Map reliable strengths
A reliable strength appears in more than one situation and produces useful effects. Name strengths precisely so the engineer can apply them deliberately rather than receiving empty praise.
Use these dimensions as prompts, adapted from themes in Monzo, Dropbox, and CircleCI frameworks:
| Dimension | Strength question |
|---|---|
| Impact | Which meaningful outcomes repeatedly improve? |
| Judgment | Which tradeoffs does the engineer clarify well? |
| Ambiguity | What kinds of uncertainty can they reduce? |
| Influence | Which groups trust and use their direction? |
| Leverage | Whose capability or execution improves? |
| Operations | What becomes safer, simpler, or more durable? |
Manager script: “A reliable strength I see is decision framing under operational pressure. In both the payments incident and migration review, your options made risk legible and helped different teams commit. Where else could that strength create leverage?”
Find the limiting gap
A limiting gap is the one behavior or missing experience that constrains a valuable next-scope outcome. It is not every difference between the engineer and an idealized ladder profile.
For example, an engineer may write excellent architecture strategy but fail to involve the teams that must adopt it. The limiting gap is not “communication” in general; it may be early stakeholder discovery and shared decision design. That specificity suggests a practiceable experiment.
Separate three cases:
- Skill gap: the engineer has had a fair opportunity but the behavior is not reliable yet.
- Experience gap: the engineer has not encountered enough relevant situations to know.
- Opportunity gap: the organization has not provided access, mandate, or a real problem in which the behavior could be shown.
Managers must not describe an opportunity gap as personal deficiency.
Clarify aspiration without making promises
Aspiration is the kind of contribution and working life the engineer wants, not merely the next title. Explore desired problems, people interaction, pace, depth, authority, and energy before choosing an assignment.
Engineer prompts:
- Which recent work made me curious enough to continue after the immediate task?
- Do I want enduring domain stewardship, coordinated execution, hard bounded problems, or broad strategy translation?
- Which costs am I willing to accept: longer feedback loops, more disagreement, less hands-on coding, or greater uncertainty?
- What do I not want my role to become?
Manager prompts:
- “Which parts of broader scope energize you, and which only look prestigious?”
- “What would a satisfying year look like even if the title did not change?”
- “Which archetype is a hypothesis worth testing, not an identity we must defend?”
Aspiration informs opportunity design but cannot promise a role the organization does not need. Say that plainly and early.
Build the four-part diagnosis
The course's synthesized diagnosis joins evidence, aspiration, need, and access. Each quadrant prevents a common mistake.
| Part | One-sentence output | Mistake prevented |
|---|---|---|
| Strength | “Reliably frames high-risk operational decisions across teams” | Ignoring existing leverage |
| Limiting gap | “Does not yet create shared ownership before proposing direction” | Vague deficit labels |
| Aspiration | “Wants enduring platform stewardship and enjoys adoption work” | Assigning prestige instead of fit |
| Opportunity | “Identity migration needs three teams to agree on ownership this quarter” | Practicing on invented work |
Diagnosis statement:
[Engineer] reliably demonstrates [strength + evidence]. To contribute to [real outcome], the limiting capability to test is [specific behavior]. This fits their aspiration toward [type of contribution]. The organization will provide [opportunity, access, authority, support] and inspect [evidence] by [date].
Example: disagreement about the gap
Disagreement is useful when both sides can test their models. Imagine Priya believes she is ready for broader scope, while her manager says she needs “more influence.”
Priya: “Can we replace influence with an observed situation and effect?”
Manager: “In the identity request for comments (RFC)—the written proposal used to gather feedback—two teams agreed in the room but did not adopt the decision. I did not see you learn their constraints before proposing it.”
Priya: “I agree adoption failed. I think the missing factor was authority: their directors had conflicting goals. Let us test both explanations.”
Joint experiment: Priya conducts discovery with engineers and directors, publishes conflicting incentives, creates shared decision criteria, and asks a neutral Staff engineer to observe. The evidence will distinguish a skill gap from an authority or incentive problem.
The manager neither withdraws the feedback nor insists their first explanation is fact. Priya neither dismisses the outcome nor accepts a vague label.
Run a diagnosis conversation
A focused diagnosis can use the final growth segment of the fixed 30-minute 1:1 over several weeks. Keep the standard 10/10/10 intact; progress one part at a time and put deeper analysis into a separate working session when needed.
Suggested sequence:
- Engineer brings a self-assessment with two evidence examples.
- Manager brings one reliable strength and one limiting-gap hypothesis.
- Both compare aspiration with current organizational needs.
- They identify missing evidence and ask relevant peers, without running a popularity poll.
- They choose one experiment and write what each side must provide.
Key takeaways
Good diagnosis makes development specific, fairer, and connected to real work. It remains a hypothesis that new evidence can revise.
- Start with observed behavior, effects, and corroboration—not adjectives.
- Distinguish skill, experience, and opportunity gaps.
- Choose the limiting gap for a real outcome instead of completing every ladder row.
- Explore contribution, energy, and tradeoffs beneath title aspiration.
- Managers own access and conditions; engineers own learning and action.
- Disagreement should produce a better test, not forced consensus.
Practice: complete a diagnosis page
This exercise creates the input for a 90-day growth contract. Engineer and manager draft independently, then reconcile differences with evidence.
| Prompt | Engineer draft | Manager draft | Shared view / missing evidence |
|---|---|---|---|
| Reliable strength + two examples | |||
| Limiting gap + observed effect | |||
| Skill, experience, or opportunity gap? | |||
| Desired contribution and tradeoffs | |||
| Real organizational need | |||
| Access, authority, and support required | |||
| One bounded experiment |
End with one diagnosis statement. If evidence is weak, label the uncertainty rather than filling the gap with confidence.
Sources
The dimensions draw from these practitioner frameworks; the four-part diagnosis and conversation sequence are course syntheses.