Which side had an advantage in professionalism of the army?

The Union army had a significant advantage in professionalism compared to the Confederate army during the American Civil War. The Union benefited from a larger pool of resources, including experienced military leaders and better training facilities, which contributed to a more organized and disciplined force. Additionally, the Union's industrial capacity allowed for improved supply lines and equipment. In contrast, while the Confederacy had skilled officers, they often lacked the same level of infrastructure and resources to maintain a professional military.