Candour, honesty and therapy. And enforce ridiculously high standards.
Most of us are not as good as we say/imply we are. All of us are terrified that someone will find out, and terrified that we will slip. So there is often a refusal to say "I don't know" or a refusal to accept that we might need to slow down and think about the work we are doing
Your best bet is to make a team that is willing to try something that will make them look like they don't know what they are doing, send off signals to "management" that are opposite of what all the other teams are sending. (This is the other point about a tech lead - you will be compared to the other tech leads - if they are hiding their faults, you will look bad by comparison as will your team - how you persuade management this is not the case is hard.
My best suggestion for that is ridiculously high standards - perfect test coverage, documentation, linting, enforced peer review and more. For every commit. Enforced by scripts not by you.
Most of us are not as good as we say/imply we are. All of us are terrified that someone will find out, and terrified that we will slip. So there is often a refusal to say "I don't know" or a refusal to accept that we might need to slow down and think about the work we are doing
Your best bet is to make a team that is willing to try something that will make them look like they don't know what they are doing, send off signals to "management" that are opposite of what all the other teams are sending. (This is the other point about a tech lead - you will be compared to the other tech leads - if they are hiding their faults, you will look bad by comparison as will your team - how you persuade management this is not the case is hard.
My best suggestion for that is ridiculously high standards - perfect test coverage, documentation, linting, enforced peer review and more. For every commit. Enforced by scripts not by you.