One of the best ways to be a great teammate is to have a “can-do” attitude. This doesn’t mean that someone cannot question how reasonable a request is. It means that they test their skepticism against a really solid attempt. They want to be wrong when they doubt the ability of the team to succeed. They don’t look for reasons why the work required shouldn’t be applied. They try and try hard to make things possible. When they fail, they communicate the real reasons and not the imagined ones. This allows them to make adjustments free from confirmation bias. Their integrity is preserved in trying their best rather than by saying no before they have tried.