He is not much better than Hill. Back in the offseason, when everyone was screaming for a "real" big man, I asked realistically what big men out there were a significant upgrade over the ones we already had (Hill, Hayes, Scola, Patterson)? I knew Dalembert ain't one.
In the last two games, opposition wings (CJ Miles/Affalo) have taken over these games, and the lack of a reliable C has been exposed. If the Rockets can upgrade their depth at the 2/3 spot and add a starting calibre C without losing major pieces. I think for this season, which is very open. The Rockets can make franchise changing moves to truly contend.