I'll use an example from baseball to illustrate my question. A designated hitter is someone who bats, but is not deployed on the field. In its extreme form, a "one way player" would be someone who was one of the best hitters in the game, but could not field as well as a good minor league player. Examples would be David Ortiz or Frank Thomas.
Are there people in tennis who are great servers but who have trouble at returning serve in the later stages of a major event? That is, they will almost never have their serve broken in a given match, but also almost never break serve? Meaning that a large number, if not the majority, of their sets are decided by tiebreakers?
Put another way, how "lopsided" are John Isner, Ivo Karlovic, or other similarly challenged world class players.