I've seen this discussed on another forum and wondered whether people think it would be a good idea to implement in season mode on top spin 4. It would be the same sort of deal as NBA where the players have hot and cold streaks which affects their performance. In the words of someone else:-
A 95 rated Sampras for example is having an off 2 weeks at wimbledon, instead of having an ovr rating of 95, he has 91 for the 2 weeks. Still very possible for him to win wimbledon, but easier to knock him off. Conversely, when Sampras is hot, his ovr is a 99 and nearly unbeatable, bordering on impossible to beat at wimbledon- we've seen this in real-life haven't we???
Of course i don't know how the ratings would or should be generated. And for online play the default rating should stick, i.e. federer is built in the game with an overall rating of 91, nadal 91, roddick 85 etc, and this doesn't change ala top spin 3.