Not sure Roy Halladay is thought of as a Phillie.
I probably would not retire Rolen's number but I also hedge on the trio of Rollins, Utley, and Howard. It lowers the bar considerably to where you really have to think about multiple other players (Rolen, Hamels, etc.).
They should definitely put Rolen on the Wall of Fame. I have never understood why they did not do it pretty quickly because it was so obvious. Rolen's "sin" was criticizing the organization for not trying hard enough to win and he was right about that. Several owners and a generation of fans later and we are still debating this?