Really hard to imagine the angle the writers were going for here. Carrie essentially has no redeeming qualities, nothing to make the audience root for her either professionally or personally. She has basically shown she has to scheme, connive and sleep her way to "successes".
As the station chief, she sucks (literally and figuratively apparently) - at the outset we were led to believe she was some kind of super covert operative - but we have seen precious little of that since it was alluded early on in the series. But, be that as it may, as station chief she is the boss, and needs to stay above the fray and see the forrest without getting bogged down on one of the trees.
They should have just gotten Pamela Landy (From Bourne series) to be the station chief in Islamabad and Carrie could have run her op under a competent leader.
This is a series of so many missed opportunities - Brody killing the VP, Quinn taking a head shot on Carrie, etc.