A once in a generation team to be honest. There isn't a lot we are doing differently/worse now, but it's not every couple of years players like Flintoff, Pietersen, Vaughan, Strauss and Jones turn up and a pull it all together like that. Also you have to remember McGrath injuring himself in between the first and second test's played a huge role in England's victory.
Better now to get behind our current gems, your Root's, Ballance's and Buttler's in the hope they are still doing the business by the time more talent comes in to back them up.