What does "doing more will lead to more mistakes, doing less will result in fewer mistakes, and not doing more will make you better"? How to understand

In fact, the original meaning of this sentence is that it is incorrect to evaluate a person by the absolute number of mistakes he makes.

If the probability of a person making a mistake is the same, then the more things are done, the greater the absolute number of mistakes will be. If you do less, you will make fewer mistakes.

However, this is based on an average error probability! In fact, some people do a lot of things, but have a high accuracy rate, so they make fewer mistakes. We cannot say that such people do less things. On the contrary, some people do less things, but have a high error rate and a high number of mistakes. However, you cannot think that this person does a lot of things just because they make a lot of mistakes.

In fact, the assessment is to assess the following aspects:

First, what exactly was done and how difficult it was.

It is understandable that difficult things take a lot of time and have a high probability of errors.

For simple work, if problems often occur, this kind of person must not be used.

Second, do you think the mistake is a matter of principle or detail? Is it a question of method or idea?

Some minor problems can be allowed for less important details. For key details, you can allow for an occasional problem or two. However, issues of principle are absolutely not allowed to go wrong.

Problems arise due to working methods and can be given opportunities to improve. However, if it is an ideological issue, it must be dealt with seriously. The ideological issues here refer to behaviors that include selfish thoughts, false interests, and selfish behaviors at work.

The following is an example:

The production manager of a certain unit overstepped his authority and modified equipment parameters without notifying the production engineer, resulting in a large number of products being scrapped. The boss thought it was a bad thing done out of good intentions and did not take it seriously. Later, many similar incidents occurred, but the boss still did not deal with them. As a result, the production manager became more and more courageous and pretended to understand many professional matters, which ultimately led to the company's collapse with losses of tens of millions. In fact, the first time you make a mistake, although it can be understood as doing something bad with good intentions, the nature is also very serious and it is obviously a violation of principle. If similar problems occur again and again later, it is not a method problem, but an obvious ideological problem. If the boss is not alert to this, the consequences are inevitable.

A company has two production engineers who are responsible for the same work. One often makes mistakes, the other never makes mistakes. The boss who often makes mistakes takes it very seriously every time and talks to him often to understand the situation. The one who made no mistakes has never spoken to him once. Workers all know that the one who often makes mistakes is afraid of problems, so they often seek help from the engineer who makes no mistakes. However, no one expected that two years later, the engineer who often made mistakes would be promoted and his salary would be raised. Some people were dissatisfied, and the boss gave two explanations: First, making more mistakes means doing more. Secondly, making many mistakes means that the cost paid by the unit is high, so it should be retained. It is said that the engineer who made no mistakes later stopped helping and resigned soon after.