A lot of times when I ask readers, friend and other writers for advice when I get stuck on part of the plot, or how to bring multiple plot points together, a lot of times the advice given is to create a new character and a new subplot in order to connect the plot points of the main story. However, a lot of times I do not want to create a new character with his/her own subplot. I feel that it's not worth creating a new character if their only job is till fill a gap, so to speak. Sometimes I like doing it of it works well and that character is able to get his own theme or pay off out of it, but if there is no opportunity for that, and their job is till fill a gap only, is it really worth creating characters and more plot for that? Or is that just the way it has to be which is why many stories have multiple minor characters in because they are totally necessary?