Everth Cabrea or Erik Aybar in a dynasty league???
You should tried to find a new SS if its possible... Do a trade!
I would go with Aybar also, I think he is more well-rounded and will produce more in more categories for a longer time to come.
I like Aybar, He's in a better lineup, in a better organization, with a better manager, in a better park. Neither are great hitters, but Aybar is a legit .300 guy with speed.