What is the SBI feedback model?

SBI stands for Situation, Behavior, Impact, a model from the Center for Creative Leadership. You name when and where it happened, describe what the person did in observable terms, and say what effect it had. For example: 'In Tuesday's client call, you answered the pricing question before Dana finished. She lost the thread.' It works well because it keeps feedback to facts the person can respond to.

What is the DESC model of feedback?

DESC stands for Describe, Express, Specify, Consequences, an assertiveness script from Sharon and Gordon Bower's book Asserting Yourself. You describe the behavior, express how it affects you or the work, specify the change you want, and name the consequences, positive or negative. It is more directive than SBI, which makes it useful when you already know what needs to change and want to ask for it clearly.

What is Radical Candor?

Radical Candor is Kim Scott's framework for feedback that combines caring personally with challenging directly. Her book maps four quadrants: Radical Candor (both), Ruinous Empathy (care without challenge), Obnoxious Aggression (challenge without care), and Manipulative Insincerity (neither). It describes the stance you bring into a conversation rather than the words to use, so many people pair it with a structure like SBI.

Is the Accountability Dial a feedback model?

Not in the same sense. SBI, DESC and Feedforward shape what you say in one conversation. The Accountability Dial, created by Jonathan Raymond, is a five-stage framework for a pattern over time: Mention, Invitation, Conversation, Boundary, Limit. The history of the pattern decides the stage, not how upset you feel. You can use SBI inside a Mention or DESC inside a Boundary.

Can I combine feedback models?

Yes, and most good managers do without naming it. Radical Candor is the attitude, SBI or DESC is the sentence structure, Feedforward is how you close, and the Accountability Dial tells you how direct this particular conversation should be. Trouble starts only when you use a heavy structure for a light moment, such as a full DESC script for something that deserved one sentence.

Guides for managers

Which feedback model should I use: SBI, Radical Candor, DESC, or the Accountability Dial?

Q: Which feedback model should I use?

Pick based on what you need from the conversation. SBI is best for short, factual feedback, positive or critical. DESC fits when you need to ask for a specific change and say what happens next. Feedforward works when you want ideas for next time. Radical Candor is a stance, not a script, so it sits behind all of them. If the same issue keeps coming back, use the Accountability Dial to decide how direct to be.

Use SBI for quick, factual feedback, DESC when you need to ask for a specific change, Radical Candor as the stance behind any of them, and Feedforward when you want to talk about next time instead of last time. Those four structure one conversation. The Accountability Dial is different: it tells you which conversation to have, based on how many times the pattern has already come up.

October 1, 20266 min readFeedbackFeedback ModelsAccountability Dial

Picture a Tuesday. Sam's code reviews have been sitting. The PR from Thursday is still waiting on him, and the release slipped once last month for the same reason. You've read about SBI, someone on your leadership team swears by Radical Candor, and HR's training deck had a slide on DESC. Which one do you use?

Most comparisons treat these as competitors. They mostly aren't. Four of them answer the question "how do I say this?" One of them answers a different question: "which conversation is this, the first or the fourth?" Once you see that split, picking gets much easier.

The split: one conversation vs. a sequence

SBI, DESC, Radical Candor and Feedforward structure a single conversation. They help you choose words, keep to facts, and avoid turning a moment into a lecture.

The Accountability Dial™ sequences conversations over time. It doesn't tell you how to phrase a sentence. It tells you how direct to be, based on how many times this pattern has already come up and been talked about. The first time Sam's review sits, you mention it. The fourth time, after three earlier conversations, you're setting a boundary. Same issue, very different conversation.

That's why "SBI or the Dial?" is a slightly odd question. You can use SBI inside any stage of the Dial.

The models compared

Model	What it's for	Structure	Strength	Limit
SBI (Center for Creative Leadership)	Quick, factual feedback on one moment	Situation, Behavior, Impact	Keeps you to observable facts. Works for praise as well as criticism.	Doesn't ask for a change or invite their side unless you add a question.
DESC (Sharon and Gordon Bower)	Asking for a specific change	Describe, Express, Specify, Consequences	Clear about what you want and what happens next.	Can sound scripted or heavy for a first, small moment.
Radical Candor (Kim Scott)	The stance behind feedback	Care personally + challenge directly	Names the two failure modes most of us drift into: being too nice and being too harsh.	Describes an attitude. Doesn't give you words or timing.
Feedforward (Marshall Goldsmith)	Ideas for next time	Ask for, or offer, suggestions about the future	Low threat. People hear it as help, not judgment.	Skips the past, so a real pattern can go unnamed.
Accountability Dial (Jonathan Raymond)	A pattern that repeats	Mention, Invitation, Conversation, Boundary, Limit, separated in time	Matches how direct you are to how long it's been going on. Most situations resolve early.	Doesn't give you sentence structure. You still need words for each stage.

One situation, five models

Same moment for all five: Sam's review on the Thursday PR is still open on Tuesday. It's the second time this month a review has held up the team.

SBI

"On the Thursday PR, the review's still open as of this morning. The team couldn't merge, and Priya's been blocked since Friday."

Clean and factual. Notice it ends without a question, which is SBI's quiet weakness. Adding "What's going on?" turns a statement into a conversation.

DESC

"The review on Thursday's PR is still open, and this is the second one this month. I'm worried about the release date when reviews sit that long. I'd like reviews turned around within one working day, or a heads-up in the channel if you can't. If that happens, we stay on schedule and I stop chasing."

Very clear. Also a lot for a first conversation. DESC fits best once you've already raised it lightly and need to ask for something specific.

Radical Candor

"I know you've been buried in the migration, and I want to help you protect that time. I also need to be straight with you: the Thursday review sitting until Tuesday is a problem for the team. Can we figure out what's getting in the way?"

The care and the challenge are both in the room. Radical Candor doesn't dictate this exact wording; it's the attitude that makes the words land.

Feedforward

"Reviews have been a bottleneck lately. What's one thing that would make it easier for you to turn them around faster next sprint?"

Easy to hear and useful when you want ideas. But the Thursday PR never gets named, so if this is a pattern, Sam may not know you see it as one.

Accountability Dial

Here the Dial changes the question. Has this been talked about before?

If it hasn't, this is a Mention, one sentence, said soon:

"Saw the Thursday review is still open. Everything okay?"

If you mentioned it two weeks ago and it's happening again, this is an Invitation to look at the pattern together:

"This is the second review this month that's sat for a few days. I'm curious what's going on. Can we look at it together?"

If it's past that, the later stages get progressively more direct: a Conversation about the impact, a Boundary that names what has to change by when, and a Limit with a consequence. The stage-by-stage guide has examples for each.

When to use which

If you need to...	Reach for
Say something small, right after it happened	SBI, or a one-line Dial Mention
Praise something specific so it happens again	SBI ("In the incident review, you named the root cause in two minutes. That saved us an hour.")
Ask for a specific change you've already hinted at	DESC
Check your own stance before a hard conversation	Radical Candor's quadrants: am I being too nice or too harsh?
Get someone thinking about next time without defensiveness	Feedforward
Deal with something that keeps coming back	The Accountability Dial, with SBI or DESC for the words
Decide whether this is a "quick word" or a "we need to talk"	The Accountability Dial

A rough rule: the more times something has happened, the less the sentence model matters and the more the sequence does. A perfect SBI sentence won't help if it's the fifth time and you're still delivering it as though it were the first.

Where every model goes wrong

The models differ, but people fail with all of them in the same few ways.

Waiting. Any model works better on Tuesday than three weeks later. A late SBI is still a late conversation. The longer you wait, the more examples you collect and the heavier the conversation gets.

Using the heavy tool for a light moment. A full DESC script with consequences, for a first late review, feels like an ambush. Start smaller than feels natural.

Skipping their side. SBI and DESC are both easy to deliver as monologues. End with a real question and then stop talking. There's often context you don't have: a blocker on another team, a priority someone else changed.

Talking about character. "You don't care about the team" can only be defended against. "The review sat from Thursday to Tuesday" can be fixed. Every model on this list is trying to get you to the second sentence.

Treating the fourth conversation like the first. This one the Dial was built for. If you keep giving light feedback on a pattern that's been talked about several times, the person hears that it isn't serious. If you jump straight to a formal warning, they hear that the first few conversations didn't count.

Where Ren fits

Most of the hard part isn't choosing a model. It's noticing that a conversation needs to happen, and then finding the first sentence. Ren is an AI app in Slack and Microsoft Teams for exactly that moment. It notices conversations that aren't happening, helps you judge which stage of the Dial a situation is really at, and drafts the opening line in your voice, whether you're a manager, a peer or the person on the receiving end. You can try it at tryren.com.

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