This is overly cynical. I know people who are extremely successful in real life on the back of almost nothing more than having a great personality. She could just be a rock solid person, but she also has some decent qualifications.
She has a degree which makes her more educated than a lot of MLB coaches. She also has playing experience and was an elite athlete, which is more than some of the new nerd coaches can say. She arguably has better credentials to be an MLB team coach than, say, that Jonathan Erlichman guy the Rays hired... at least she will be able to throw BP and swing a fungo without embarrassing herself.