Feedback in Performance Reviews:

Opening Up Blind Spots

Why feedback is the heart of a good review

The most valuable part of a performance review is not the rating. It is the feedback, and the chance it gives people to see themselves the way others do.

Most of us believe we have a fair read on how we come across at work. Yet everyone has habits, strengths and gaps they simply cannot see from the inside. Done well, a performance review is one of the few structured moments where those blind spots can be gently brought into the light.

What is a blind spot?

A blind spot is something others can see in us that we cannot see ourselves. The idea comes from the Johari Window, a simple model psychologists Joseph Luft and Harrington Ingham developed in the 1950s. It splits what is known about a person into four areas:

  • Open: what you know about yourself and others know too.
  • Blind: what others see in you, but you don’t.
  • Hidden: what you know about yourself but keep from others.
  • Unknown: what nobody has discovered yet.
Feedback is the main way the blind area shrinks. When a manager or colleague shares what they observe, something hidden from you moves into the open. You can then decide what to do with it.
Blind spots are not always weaknesses. Often they are strengths people undervalue. A team member may not realise how much others rely on their calm in a crisis, or how their attention to detail lifts the whole team’s work.

Why it matters from an HR perspective
From where we sit in HR, good feedback is one of the most cost-effective tools a business has. It shows up in four places:

  • Performance: People cannot fix what they cannot see. Specific feedback turns a vague sense of “not quite there” into a clear next step.
  • Engagement: Employees who get regular, honest feedback feel noticed and invested in. Silence is often read as indifference.
  • Retention: Many resignations start with someone feeling stuck or unappreciated. A review that recognises strengths and maps out growth gives people a reason to stay.
  • Risk: Performance issues that go unspoken for months tend to surface later as conflict, complaints or a difficult exit. Documented, fair feedback protects both the employee and the business.
There is also a culture benefit. When leaders ask for feedback on their own blind spots, they show the team it is safe to learn out loud.

What gets in the way

Most managers want to give good feedback. A few common traps stop it from landing:

  • Saving it all for once a year. Feedback that arrives months after the event feels like an ambush, and the moment to learn from it has passed.
  • Being vague. “Great job” and “needs improvement” don’t tell anyone what to keep doing or what to change.
  • Avoiding the hard conversation. Many managers soften or skip difficult feedback to protect the relationship. The person then never gets the chance to improve.
  • Making it one-way. A review where the manager talks and the employee listens misses half the picture. The employee’s view often reveals the manager’s own blind spots.
How to give feedback that opens blind spots

  1. Make it regular. Short, frequent check-ins mean the formal review holds no surprises. It becomes a summary of conversations you have already had.
  2. Be specific and use examples. Describe what you saw, when it happened and the impact it had. “In Tuesday’s client meeting, you summarised the options clearly and the client signed off on the spot” is far more useful than “good communication”.
  3. Balance strengths and growth areas. Name what someone does well as clearly as what needs work. Hidden strengths are blind spots too.
  4. Ask before you tell. Start with “How do you think this period went?” Comparing their view with yours shows you exactly where the blind spots are.
  5. Invite feedback in return. Ask “What could I do differently to support you?” and listen properly to the answer.
  6. Agree on actions. Finish with two or three clear next steps, who owns them and when you will check in.
  7. Document it fairly. Keep a record of what was discussed and agreed. It keeps everyone accountable and supports any future decisions.
Let’s open up the conversation

Feedback is a skill, and like any skill it gets easier with the right tools and support. At Explore Potential, we help businesses build performance review processes that people actually value. That means conversations that recognise strengths, surface blind spots and turn them into real growth.
We can help you:
 
  • Design or refresh your performance review framework and templates.
  • Coach your managers to give clear, confident and fair feedback, including the hard conversations.
  • Build a regular check-in rhythm so reviews hold no surprises.
  • Support you through performance concerns with sound, compliant HR advice.
If your reviews feel like a box-ticking exercise, or your managers are avoiding the conversations that matter, let’s talk. Contact Explore Potential today at explorepotential.com.au or call (08) 7095 1830 to explore what your people are really capable of.