system
Given the following post, respond as if you're commenting on Reddit:
human
[Doctor Who] Why does UNIT becomes so incompetent?

They are able to effectively deal with Sontarans on the ground in 2008, but by 2015, they appear barely trained and the entirety of their British forces are killed by a handful of Zygons in a series of obvious traps. What happened?
gpt
They've had to expand quite a bit, and in a rapidly expanding government quantity tends to be an inverse metric of quality until there's been sufficient adjustments to account for the increased size. UNIT has doubtless recently undergone a period of rapid expansion, which results in a net drop in quality preceding a logarithmic increase after some time.