求翻译：基金会工作人员报告说，他们的工作技能也得到了提升。一个团队成员这样说：“我们吸取的一个重要教训是，应该专注于一个目标，并把它做好，而不是设定多个目标，但成效甚微。”是什么意思？

Foundation staff reported that they also obtained the promotion of job skills. A team member said: "we learned an important lesson is that should focus on a target and do it well, not set more than one goal, but with little success. ”