Colorado Rockies: Two coaching changes and potential candidates to fill them

External candidates
Here we will look for some candidates that could fill the vacant spots on the Rockies coaching staff that are not currently in the organization. Also, everybody listed below either played under Bud Black as a player, coached for him previously in San Diego, were teammates with him, or a combination of the three.
Brook Jacoby: Jacoby has spent 11 seasons as a major league hitting coach, including with the Cincinnati Reds (2007-13) and the Toronto Blue Jays (2015-2018). He was just fired a few weeks ago from Toronto as they just hired a new manager, who could, perhaps, bring in an entire new staff north of the the border. Jacoby was a teammate of Bud Black in Cleveland from 1988 until Black was traded to the Blue Jays in the middle of the 1990 season.
Wally Joyner: Joyner spent parts of 16 seasons in the major leagues as a first baseman, primarily with the California/Anaheim Angels. He has spent parts of six seasons as hitting coach in the majors leagues, most recently with the Detroit Tigers (2014-2016). He was a player on the 2001 Anaheim Angels, where Bud Black was the pitching coach and, later, he was a hitting coach for Bud Black in San Diego from 2007 to 2008.
Kevin Seitzer: Seitzer is the current hitting coach of the Atlanta Braves and he just finished his fourth season in Atlanta. He has also been the hitting coach for the Arizona Diamondbacks, Kansas City Royals, and Toronto Blue Jays for a combined six more seasons previously. He was teammates with Bud Black on the Royals.