As leaders, you are role models for your direct reports. How you analyze problems/concerns influences how your team members will handle issues/concerns going forward. Leaders that use critical thinking processes foster teams that are intentional about assessing problems and devising solutions.
Here are some ways to improve your critical thinking skills:
Keep the goal in mind
Know your biases and try to look past them
Ask questions and gather information
Evaluate the facts of the situation and all available data
Collaborate and get feedback from others - especially people with different backgrounds to your own
Generate possible solutions (or goals, particularly out-of-the-box ideas
Consider the sort - and long-term consequences of implementing each solution
Developing your critical thinking skills will make you a better candidate for that new job or that promotion.