In a February 1977 interview, Cosier admitted "I've got doubts about my own ability. I'm not convinced I"m a test batsman yet. I've got a long way to go... At the moment I'm playing one good innings and then three bad ones. I don't know why. Maybe I need to relax myself more of perhaps it's got something to do with attitude. All I know is I'm trying to work on it... I've heard about the things they say about me outside the off stump and to an extent I go along with them... I admit I'm a bit overweight."