Complex sentence: Doyle Wilburn was slowly grooming Ramey to replace Loretta Lynn as his lead female singer, he also held a music publishing contract on her with Sure-Fire music, his songwriting agency, as Wilburn realized that she was also a very talented songwriter.
Split into simpler sentences: Doyle Wilburn was slowly grooming Ramey to replace Loretta Lynn as his lead female singer. He also held a music publishing contract on her with Sure-Fire music, his songwriting agency, as Wilburn realized that she was also a very talented songwriter.