The more I think about it, the more sense this makes. I think it would be great to have our secret weapon who needs to be limited, go against inferior talent when we are close to or in the bonus. Also he can always close out games. We need to do this.
From the sound of it I don't think that Yao can even play 24 minutes considering it's the hard cap. Therefore, it's probably best to just sit him the entire first halves and start him for the second halves and let him play normal rotation minutes for a half.