Ideally, the person who reviews a game should be highly experienced with the genre of game that they're reviewing (have a shooter guru cover an FPS release instead of haphazardly assigning someone with the "dudebro" image in their head to do the job, and send someone who plays a lot of JRPGs and knows a lot about the genre's history to review a new JRPG instead of a jingoist. For games that relate to simulation, the reviewer should be at least passingly familiar with video games while being a credible expert in the subject that the video game depicts (for example, hiring a professional naval architect to review a game from the Ship Simulator series). Most often, someone who has a deep interest with the history of a game genre will also be highly skilled with games of that genre. For exceptions, there shouldn't be anything wrong with having two people co-write a review, one focusing on what past games a given game draws from or new things the game brings to the genre, while the other plays through, with at least a passing familiarity with the genre, to judge its degree of challenge and to help the genre connoisseur see parts of the game that he or she wouldn't see if he or she played through it on his or her own.
As for news, unless otherwise noted, stories should be as purely factual as reasonably achievable unless noted otherwise, and even when opinions or predictions are given, they should be done by someone who has studied the industry's history very closely, especially whatever topic they're covering.
Some might say that these are way too much to ask for, and at this rate it might certainly seem that way, but that would be the ideal situation in my eyes.