In his autobiography , Knotts admitted that he had not yet signed a contract when Griffith announced his decision ; .
Knotts had made up Knotts ' mind to move on , Knotts he would not get the chance again .
In his autobiography , Knotts admitted that he had not yet signed a contract when Griffith announced his decision ; but he had made up his mind to move on , believing he would not get the chance again .