Smith was playing great in SF before he got hurt

And never got his job back because Harbaugh decided to hitch his wagon to Kaepernick.

Harbaugh IMO is the person who turned Smith around, not Reid. The improvement had already occurred when Harbaugh made the mistake of thinking that CK was the QB of the future. It was a BIG mistake on his part. The Chiefs are benefiting from that mistake big time.

Smith has two back to back very good seasons before he moved on to KC.