I think Rose is healthy, but he's not used to NOT getting bail out calls. His coach already went to the press's saying Rose doesn't get to the FT line much because he's a "nice guy". You take away those FTA, and combine it with the lack of ball movement, and outside shooters and you have an offensively flawed team.
You trade D.Rose for a healthy Rondo and another consistent shooter, and that team's offense is a lot better. At least IMO