If the function has changed, that justifies a design redo. The Disney Concert Hall in L.A. -- one of the finest audio experiences in the world for a structure of that size -- illustrates that great architecture and great acoustics can be accomplished in the same program. It will soon become clear if the design took a back seat to budget, or function, or local architecture-of-record whim, and, as Dave notes, we can all score the new design based on the subjective (mostly) and objective qualities of the design.