While Kevin Gregg was certainly a journeyman pitcher, he did record 20 Saves in a season six times; though the fact that he did that for four different teams (one of which in two different runs) shows off that no MLB General Manager viewed him as an elite talent. Still, he recorded a more than respectable 177 Saves over his career.
Should Kevin Gregg be in the Hall of Fame?
Definitely put him in! - 0%
Maybe, but others deserve it first. - 0%
Probably not, but it wouldn't be the end of the world. - 0%