Final answer:
The rhomboid minor muscle does not attach to the coracoid process of the scapula.
Step-by-step explanation:
The muscle that does not attach to the coracoid process of the scapula is the rhomboid minor muscle. The coracoid process serves as the attachment site for muscles of the anterior chest and arm, but the rhomboid minor muscle attaches the vertebral border of the scapula to the spinous process of the thoracic vertebrae.