Re: Chayenne Ewijk
Well, in my opinion not necessarily coach should achieve in his own sports career high achievements. In my opinion there is much more important HOW he COULD teach his students the WAY to play (I mean tennis technic etc.), and what it is not the least and may be the MOST important the good coach has to find ways how to "fire up" players mentality so this player would be always "charged" to win.
On the other hand many players change coaches when they feel that they might get more from another coach (as far as I know there is a handful of players who had not changed coaches during their career: I can remember Henin (Carlos Rodríguez), who else?)
So let's just hope that she could find a right person...
And of course it is also up to Chayenne herself whether she would be able mentally and physically to work hard and "die" on the courts in order to achieve Top levels.