Boxers sometimes win fights with one big knockout punch to the jaw. 

Mostly, though, they slowly wear down their opponent with a succession of body shots over a succession of rounds. 

Marketing works the same way. 

You might get lucky with a post or a campaign that magically goes viral and delivers you a shower of leads. 

More likely, though, if you’re going to succeed, it will be because you produce quality marketing over the long term, and slowly build a following that way.