Yophery is a low power, corner outfielder. Not a lot of upside IMO.
Sandlin seems headed for the pen or out of the system.
I'm out on Cespedes. He's a short DH that isn't hitting.
Anderson is a guy who really needed to be at Lowell last season. He's still young and may progress slowly through the system, but hard to see him having a very high ceiling.
Cason is an unknown right now.