If Green does positive work, hold on to him. As for Morris, I'd be more inclined to go with Halton who's OBP is 50 points higher than Morris this year and who can also be an option in LF. Halton needs a 40 man spot but one could be created easily enough. Morales is considerably better as a LH hitter too, so you'd have some balance with Halton. If all they were looking for is a temporary fill in at 3B, Pete Orr might do the trick too. He's got ML experience and is having a nice year.