Why was Walter Baldwin replaced by howard mcnear?

Walter Baldwin was replaced by Howard McNear in the role of Floyd Lawson on the television show "The Andy Griffith Show" due to Baldwin's declining health, which impacted his ability to continue working. Additionally, Baldwin's character was not as prominent in the series, allowing for a smoother transition to McNear, who brought a more memorable and beloved portrayal of Floyd to the show. This change ultimately contributed to the character's lasting popularity in the series.