They do it very incompetently. The quality of reporting anymore is ridiculously low.
It's not about being an expert in the subject but having a fundamental understanding and being logically minded enough to perform fact based and critically thought out reporting.
Now everything is so trashy, economics is how they can bash their least favorite company or billionaire, law reporting is one-sided story telling for bashing or cheerleading someone in court, same with politics. It's mostly story telling anymore geared for entertainment or outrage.