To me, this isn't any sort of law of the universe or manifestation or anything else. It's just common sense. Yes, if you want fresh fish for dinner, you need to go get some fish. There's nothing magical or mystical about it, nothing whatsoever.
That's not attraction, it's acquisition.
By the same token, it's not manifestation or LOA when you get a job after pounding the pavement for weeks or months, handing out resumes and filling in applications (something I've seen LOA coaches talk about). Yeah, if you apply at enough places, you'll eventually get a job, assuming you're qualified for the positions you're applying for.
The same is true for most of the LOA things I've seen. This "take action" thing is the part that always makes me laugh, because it's always just common sense. Yes, put in applications to get a job. Yes, go fishing to catch fish. Yes, get a teaching degree to be a teacher.
I really WANT to believe in the Law of Attraction, but I've been reading about it for months and months now, and trying to practice it and as far as I can tell, it's nothing more than old fashioned positive thinking, some self confidence exercises, and a lot of hard work that has very little to do with the universe, and everything to do with personal effort.