Why Does 'Do Your Best' Rarely Work as a Professional Goal?

Why does 'do your best' rarely work as a goal?

Because it gives the brain nothing to aim at. Locke and Latham's review of several decades of goal-setting research found that specific, challenging goals consistently produce higher performance than vague or "do your best" goals, largely because a specific target focuses attention, sustains effort, and gives a clear line for feedback (Locke & Latham, 2002). "Do your best" sounds generous. In practice it is the easiest goal to quietly abandon.

This matters for anyone writing a professional goal, whether it sits in an appraisal form, a founder's quarterly plan, or an athlete's training block.

What does goal-setting theory actually say?

Locke and Latham's core finding is simple to state and easy to misapply: performance tends to rise with goal difficulty, provided the person has the ability and commitment to pursue it, and provided they get feedback on how they are doing. Difficulty without those supports does not help. A goal that is merely hard, with no feedback and no real buy-in, behaves a lot like "do your best" with extra anxiety attached.

So the useful question is never just "how ambitious should this goal be?" It is "what has to be true for this level of difficulty to work?"

The four conditions that make hard goals pay off

(Locke & Latham, 2002)

Commitment is worth dwelling on, because it is where many professional goals quietly fail before difficulty ever becomes the issue. Self-determination theory distinguishes goals a person has genuinely taken on from ones imposed on them, and ties sustained motivation to a sense of autonomy, competence and connection to others, rather than to pressure alone (Self-Determination Theory). A specific, hard, well-measured goal that nobody actually wants is still a fragile goal.

How specific is specific enough?

Consider two versions of the same intention.

A mid-distance runner preparing for a domestic circuit might set "get fitter this season" — technically a goal, practically a wish. The alternative: "cut 400m split time by 1.5 seconds within 12 weeks, tracked at every Tuesday session." The second version has a number, a deadline, and a built-in feedback loop. It is also harder to quietly let slide, because there is a Tuesday reading that says so.

A founder preparing for a funding round faces the same choice. "Get better at fundraising conversations" is a wish. "Run five investor conversations a week for six weeks, recording objection patterns after each one" gives a measure and a feedback stream in the same sentence. Our post on turning a revenue target into a development goal works through a version of this for founders in more detail.

Neither example needed to be more ambitious to work better. They needed to be more specific.

What happens without feedback?

Feedback is the part most development plans skip, usually because it feels like extra admin. But Locke and Latham's review treats it as a condition for difficulty to pay off at all — without some signal of progress, a hard goal and a vague one behave similarly, because the person pursuing either has no way to adjust. This is also why small, regular signs of forward movement matter more than people expect: Teresa Amabile and Steven Kramer's research on workplace motivation found that progress on meaningful work, even in small increments, was the single strongest driver of good days at work, more so than recognition or incentives (Amabile & Kramer, 2011, HBR).

In other words, the feedback does not need to be dramatic. It needs to be regular.

How does this fit into a development plan?

Goal-setting theory answers "how hard, how specific." It does not answer "how do I act on it when the moment arrives" — that is the territory of implementation intentions, which we cover separately in our piece on if-then plans at work. The two ideas work well together: set the goal with difficulty matched to ability, then script the trigger for the behaviour that moves it forward.

This is close to how Jobulary structures a live goal: a reason, a measure, a weekly hour budbudget drawn from time the person actually has, and a first step due within seven days, so difficulty is paired with an immediate, checkable action rather than left to goodwill. Check-ins run about three minutes, and growth is only reported when it clears measurement error — otherwise the honest read is "held steady," which is itself feedback, not failure.

If you are deciding how many such goals to hold live at once, rather than just how hard to make one, our piece on how many professional goals at once covers the capacity side of this question. Jobulary caps live professional goals at three by default, with a ceiling of five, precisely so that the feedback a person gets on each goal stays frequent enough to be useful, rather than spread thin across a dozen good intentions.