None of the world cup winning rugby side are still playing, so the fact they won it is completely irrelevant to the current side and the most recent grand slam before this years one was 2003. England were an abject failure in the recent world cup, worse than the football team in the Euros, yet within months of getting a new manager who knows what he is doing, won the grand slam and we have never won a series in Australia before, even the world cup winning side.
The criticism the cricket team got for sacking Cook on the eve of the world cup, players not having a clue how to respond to the coach who came out with garbled messages and interviews that made little sense, talking about data and stats when the team had just been slaughtered, suddenly the same players under a new coach played with a completely different style and with confidence that was lacking only months before. We went out of the world cup having been beaten by Bangladesh. The side hasnt been in a world cup final since 1992, we were so lowly ranked we nearly had to qualify for the 2006 champions trophy and havent been ranked number 1 in one day cricket for decades. Root is the only player we have who is in the top 10 for either discipline in ODI cricket and it says everything that Anderson is our top ranked bowler despite hardly playing that format over the last 2 years, sad state of affairs because the players are coming from such a low ranking that they are only just appearing near the top Buttler for example isnt in the top 10 due to a shocking world cup but since Bayliss has taken over is one of the most destructive batsmen in the shorter format. The test side peaked to be number 1 however soon tailed off to be 6th, a ranking we are only now recovering from. Anyone describing Lancaster and Moores as anything other than disastrous is being generous.
If your happy with fat Sam then thats for you, but he wouldnt rank in the top 10 managers in the PL let alone the world for me, the FA have settled for mediocrity just because he is English and there are no other Englishmen. Anyone thinking that good management is shouting and ranting at people is living in the dark ages.