The difficulty: Kim was coming off his personally disastrous performance in the 2001 World Series.
"People, especially right-handed hitters don't see that angle a lot, so he doesn't have to be fine in the zone," Kniffin told The AP. "He just needs to attack with his strengths and not pitch tentative."
Kniffin joined the Diamondbacks as their major league pitching coach in 2002 after more than a decade as a coach in the minors.
Kniffin also made the majors that year more than two decades after his own playing career ended. As a player, he made it as high as AAA, but not the bigs.
Kniffin's career in baseball began in 1969, taken by the Phillies in the 25th round out of the University of Tampa.
He started at rookie Pulaski, moving to single-A Spartanburg in 1970, staying there through 1972. In that 1972 season, Kniffin went 13-1, with a 2.11 ERA.
Kniffin made AA Reading in 1973, going 10-6, with a 4.34 ERA. He had a run of six-straight wins that July. He played parts of four seasons at Reading. He then played two full seasons at AAA Oklahoma City, his career ending in 1978.
By 1988, Kniffin was back in the minors as a coach in the Mariners system. He moved to the Expos system by 1992, then the Diamondbacks system by 1997.
In 2002, Kniffin watched over a world champion pitching staff that included Randy Johnson and Curt Schilling.
"Kniff had to deal with not getting a chance, never getting to reach his dream," one of his pitchers Mike Morgan told the Phoenix New Times that June. "For him to finally get up here at the age of 51 has got to be a thrill. He's got to deal with all kinds of personalities, all kinds of situations, and he's doing fine."
Kniffin stayed with Arizona into 2004. By 2005, he was back in the minors. He served as pitching coach at AAA Syracuse that year. He then moved to AAA Colorado Springs. He stayed there for four seasons, his last in 2009, when he retired.
- Bangor Daily News, Associated Press, March 14, 2002: Kim 'fine' after Series nightmare
- Phoenix New Times, June 20, 2002: Pitcher Perfect
- Pikes Peak Courier, July 9, 2011: Thirty years in 'America's Game'
Made the Majors: 848 - 46.8%-X
Never Made Majors: 963-53.2%
5+ Seasons in the Majors: 363
10+ Seasons in the Minors:213