I'm not so sure about that.
They emerged at Liverpool, but Liverpool seems to have a tendency to use it's star players too much.
This was certainly the case with Fernando Torres (of course it didn't help that he had hardly any summer rest because of the Spanish national team).
People who know Liverpool much better than me can contradict this, but isn't the general problem of English clubs the calendar? English clubs play too much football with the FA Cup, the League and the League Cup. Add to that the CL or the Euro League and you got a problem if you don't rotate enough. And to me it seems that Liverpool never rotated enough compared to teams like Man Utd, Arsenal and Chelsea. It seem as if Liverpool's first eleven is very strong when they are succesfull, but i have the impression that the squad is not strong enough and that because of that most of the key players, play all the time.