When team members experience conflict, you should avoid dictating a resolution, because people may resent being bullied into accepting a solution. Instead, encourage them to find common ground and explore new possibilities. In this case, you might say, "You both want the same result here—a task finished correctly. But you're recommending different ways to get there. Let's discuss the pros and cons of the two different approaches you're arguing over, as well as bring some additional alternatives into the picture. That way, we'll stand a better chance of selecting the best solution.