Can I have an example of a context in which the expression throw the net wide is used? I have heard it in passing but it is not clear to me what was meant.
"We really need to find strong candidates for this job, so let's throw the net wide."
Meaning: "Let's look in as many places as possible for job candidates."
It is a metaphor for fishing with a net. The wider you throw the net, the larger an area of water it will cover, so the more likely you are to catch a fish.
I don't think I've ever heard "throw the net wide". I've always heard it as, "throw a wide net".
But then I just did the ever-popular ngrams thing and it shows "throw the net wide" at zero usage up to about 1955, but surging in popularity and intermittently passing "throw a wide net". Huh.