More sequence stuff.
Let's say your main character has some traits or is going to commit some actions that are likely to come across as unsympathetic to the reader.
For example, the heroine is a liar. Can't get around it. She resorts to puffing up her accomplishments whenever she feels inferior or is put on the spot.
Now assume that's essential to the plot, that one lie is going to get her in big trouble and thus pull her into the plot of political intrigue.
Also you see her deceptiveness as coming from her past, growing up with an alcoholic parent who required heroine to lie frequently in order to keep the family together ("My mother has bronchitis, Mr. Smith, and can't come to work," "Oh, don't worry, Ms. Social Worker. Daddy is still here and he's the one who gets us off to school in the morning."). That is, you have a scene with her mother planned, something that will show that in her childhood, lying was a defense mechanism.
So... anyway, you have three characterization revelators, and I'm wondering in what order you'd put them, and why, and what result different orders might create.
Here they are:
1) The backstory about the alcoholic mother and deserting father and the need to lie. (This could be revealed in a flashback or in the present, maybe a phone call or meeting with her mother or someone else in the past-- your choice.
2) The lie which drags her into the main external plot-- THE lie.
3) The pattern of lying that makes it clear that THE lie isn't just a one-time thing.
Imagine that each of these would be revealed in its own scene. (That isn't the only way to do this -- you could smush two into the same scene, or reveal one over several scenes-- but for the sake of simplicity, let's consider that you have three separate scenes.)
In what order would you have them and why? I don't mean they all have to be together, but if you have one a lot later than the others, tell us why?