Yahoo’s media unit laid off dozens of employees this spring — but some still aren’t getting the memo about controlling costs.

Financial chief Ken Goldman recently told his team to look for “red flags” on lavish spending, and insiders say that a few suspects were caught red-handed. An executive assistant to Yahoo News Editor-in-Chief Megan Liberman “was recently fired for approving her own unusual personal expenses,” according to one insider.

Liberman, known for running a tight ship, was so incensed at her underling that she “refused to attend the meeting in which [the assistant] was terminated,” the source said. Elsewhere, Yahoo Style Editor-in-Chief Joe Zee’s fiancé, Rob Younkers, has raised eyebrows by frequently joining Zee on Yahoo’s corporate jet to attend far-flung photo shoots. One insider contends that Younkers is flying on the Yahoo dime “for no business reason other than to keep Joe Zee company.”(nypost.com)…[+]