Minnesota Closer, Keeper league prospect question

[Iguana]

I know that Joe Nathan is the closer, and Romero the likely backup, but is it worth picking up Jesse Crain for a minor league slot in a keeper league? Any chance he'll close this year?

I currently have Brandon Claussen in my 3rd Minor League slot, is he worth keeping, or should I pick up Crain or someone like Scott Hairston?

[fishingmn]

I suppose there's a 5-10% chance Crain will be the closer.

To me that's not enough of a chance.

The guy that's in the Twins organization that will start in the minors but will likely contribute this year is Justin Morneau. He'll be up playing first base or DH with the first injury. He's a very good hitter.