The 'Lebron isn't clutch' criticism is an outdated myth that has been more or less completely disproven by guys smarter than you and I. Way more often than not in the 4th quarter he shoulders the burden himself, sometimes even moreso than the previous quarters, not to mention these days he always demands the ball (sometimes to his team's detriment IMO, but that's another argument) when the game is still on the line on the last play.
For argument's sake these are his 4th quarters these finals:
Game 1: 11 points, 2 reb, 3 ast
Game 2: 10 points, 4 reb, 2 ast
Game 3: 14 points, 2 reb, 1 ast
Game 4: 0 points, 3 reb, 1 ast
Game 5: 16 points, 2 reb, 2 ast
An average of 10.2 points, 2.6 rebounds and 1.8 assists in the 4th quarter. Extrapolated to a whole game with those figures he'd average 40.8, 10.4 and 7.2, which isn't too far off what he's actually averaging this series.
Apart from the odd outlier there is little solid evidence that Lebron isn't clutch, in fact I've read studies whose numbers actually suggest the opposite, that he's one of the more clutch players of the modern era.
