One of my favorite people is a beyond badass marketing manager by day and a sci-fi novelist by night. Like many of my clients, she started working with me because she wanted to make a change--in her case, a shift from management to a more strategic consulting role.
So she sent me her most updated resume, and it was great. Totally professional. A perfectly accurate representation of her professional accomplishments to date. A good indication of just how driven, intelligent, and talented she is.
But it only had the present tense of her career in mind. It got into what she does now, but it didn't get into what she's capable of doing. I e-mailed her back and told her, "If you want to be a consultant, write your resume like you're already a consultant."
Now, I didn't tell her to lie, or even embellish. I mean, look at my tagline. That's not my style!
I did, however, tell her to sit and really think about the *full* scope of the jobs she's had before. She's been a marketing manager for years, but she doesn't just manage the ideas of others; she implements her own ideas, too. She's a creative leader in her own right, even if that's not a part of her job description.
In my client's case, I actually had the privilege of having been a colleague of hers at one of her previous jobs, so I knew firsthand that she was underselling herself, big time. But even if I hadn't, I would have had a hunch--because it's just that common. Professionals of all ages and levels of experience, women especially, have a tendency to undervalue ourselves. We tend to only think in terms of what we've already done rather than what we can do. Your best resume is a combination of both.
I always recommend using the Profile or Summary at the top of your CV as a jumping off point. Here, you can be frank about the shift you're looking to make. "Here's what I've done for the last several years. Here's what I'm capable of doing. And here's what I really want to do." Be totally transparent. It'll lay the groundwork for the shift you're looking to make.
Remember: in any job, chances are you're doing much, much more than you're giving yourself credit for on your resume. Make sure you're getting it all.