The Intern touched on a very important thing to be on the lookout for when revising: conflict.
This is probably one of the most beneficial things this newbie has learned over the past year (That's right folks. It hasn't been all fun and first-drafting over here for me). In really evaluating one of my WIP, I noticed a few things. The characters were there. The main plot was there. But it was still lacking that page-turning drive, and after some beta comments and really studying up on how plot works, I realized there was quite a bit of my story that could have been cut without changing the outcome. Essentially, these sections were humorous, self-indulgent writing or splotches of backstory that I hadn't successfully woven into the story. These sections had no conflict at their core.
Conflict essentially occurs when your character, wanting or needing something, goes against a person and or thing standing in their way of achieving it.
If you were to break your story down, every section should consist of some sort of 'mini-goal' that your character is trying to achieve. Not all conflict will consist of an argument or an epic battle scene. Quite the opposite, really. Conflict could be as simple as trying to find information, receive support or affirmation of feelings, etc., and in seeking this out, they hit a roadblock that keeps them from achieving that goal.
Often, we focus on the bigger picture in writing--the main goal of the story and its subplots. But it's just as important to dig down deeper to make sure at the core of every page there is an evident, underlying need or desire that the character is working to fulfill.