http://espn.go.com/blog/the-gms-offi.../post?id=12184
It's an insider article but the bit on Olivera is free.
The most interesting thing is the comments made by Alex Cora who seemed to rave about him. Though I do agree with Bowden that the player Cora described is not the player we saw last season.
Any reason to have hope about Olivera not being a bust is a good thing.