With his writing partner, Dennis Lambert, Potter wrote and produced hits songs for the Four Tops, Tavares, the Grass Roots, Hamilton, Joe Frank & Reynolds, Evie Sands, Coven, Hall and Oates, and Glen Campbell.
Lambert and Potter changed the group's sound to a West Coast R&B style, then wrote and produced the Keeper of the Castle album.
[2] Their writing credits on the album included the top-ten hits "Keeper of the Castle" and the million-seller, "Ain't No Woman (Like the One I've Got).
[2] In 1974, Potter and Lambert began working with Glen Campbell at Capitol Records on a concept album based on the idea of an over-the-hill country musician who is uneasy about his previous fame.
[3] The effort resulted in the titular number-one single, "Rhinestone Cowboy", the success of which gave credence to claims that Potter and Lambert revived Campbell's career.