(one trusts the Mirror has not misquoted CVC)
It might be / could be / is an interesting comment about nervousness, though if you said to me 'athletes are nervous before an event' my reaction would be 'of course; a necessary hangover from the survival "instinct" of our earliest ancestors' - or something like that. Some great athletes are very nervous before their effort. Apparently 2ml WR-holder Komen was never nervous.
CVC should give a lecture on it to a gathering of coaches and there be a full discussion afterwards.
Finally CVC should be a strong leader but he has a mix of types of athletes to deal with, whether cocky ones like Idowu (he may not be, but I'm trying to illustrate a point) or very polite ones like Clarke (with his Etonian background?), and certainly I've never seen anyone even murmer that Ennis is any trouble at all on the athletics front (whatever goes on in her head as to what she really thinks about CVC).
CVC needs to walk the tighrope between leadership & recognising individuality; CVC don't be nervous.