Keep Rice in there for now. He always comes in every year in better shape than the rest of the league. Therefore, he should be putting up optimal numbers right away, while other receivers will still be warming up. In addition, Morton still needs to develop a repoire with Green before he'll be effective. After a couple of weeks, then I'd think about benching him for Morton.
Keep Dayne. I'm still not convinced that Barber can take the beatings of an entire season. Plus, Centers is getting old. His carries are negligible. His catches will most likely drop with the addition of Bledsoe.
Otherwise, your team looks really solid. I'd be happy with that lineup.