I’m not an expert on this, but was looking at the same issue. So far, I’ve found this helpful article:
http://premium.wpmudev.org/blog/how-to-make-twenty-fourteen-or-any-other-wp-theme-super/
– Scroll down to the “Making the Slider Auto-Scroll” section
The solution involves downloading a more complete version of the slider (Woo FlexSlider) and adjusting some code in the functions.php file of your theme/child theme.
Obviously, it’s not the most automatic solution, but it’s something.
