Complex sentence: Xiahou Yuan and the officers in Chang'an had a discussion on whether to help Jiang Xu and his allies or not, and many of the officers felt that they should wait for orders from Cao Cao before making any move.
Split into simpler sentences: Xiahou Yuan and the officers in Chang'an held a meeting on whether to help Jiang Xu and his allies or not. Many of the officers thought that they should wait for orders from Cao Cao before making any move.