the Army that went to Saudi Arabia was largely inexperienced.

army.mil/cmh-pg/books/www
Despite improvements in personnel, doctrine, and weapons, the Army that went to Saudi Arabia was largely inexperienced.

The volunteer Army was a second source of concern.

The United States Central Command, responsible for northeast Africa, Southwest Asia, and the surrounding waters, commanded U.S. forces during DESERT SHIELD and DESERT STORM. General H. Norman Schwarzkopf, Jr., commander of Central Command, controlled all of the Army, Navy, Marine, and Air Force elements assigned to the theater of operations. He reported to the Chairman of the Joint Chiefs of Staff, General Colin Powell. The Army component of Central Command (ARCENT) was the Third United States Army, colocated in peacetime with Forces Command at Fort McPherson, Georgia.

The Army of 1990 was without a doubt the most proficient and professional military force the United States had ever fielded at the beginning of a foreign war.