Scooping up all four quarters of the Slam requires that comprehensive package and more. Superb putting, particularly on fast greens, is essential. Experience is an asset. Luck helps, too, in regard to the roll of your ball and others'. And you really can't skank it around and win any of them.
Various traits apply to certain tournaments.
Somebody who is very long may be able to win the Masters but not the U.S. Open. Somebody who hits the ball very low may be able to win the British Open but not the Masters. With another major season commencing this week at the 63rd Masters, it should be pointed out that even the whole goods usually aren't good enough. Tens of Hall of Famers have come up shy, some just so. Numerous others have won two of the four.