I don't know about MSNBC specifically, but a small section like "gaming & tech" is unlikely to have more than one editor. This one editor is in charge of all editing for his section.
Second, although some newspapers (and, I assume, news sites) have a policy that requires all articles to get vetted by a separate editorial review board, this policy is frequently ignored. Especially when the author of the article is an editor himself. (See, authors usually get paid based on the number of words they get published, and ERBs have a habit of cutting articles way down or even rejecting them outright, which means the author gets paid less, which means authors who can get away with it, will circumvent the ERB as much as possible.)
For the record, I have that most awesome and underpaying of jobs, ghostwriter. I've had articles published in newspapers before. I know how this stuff works.