Weinstein then coached at Sacramento City College. He led the school to 831 wins across 23 seasons, and led the team to 16 league titles, the California Community College Athletic Association state title in 1988 and 1998, and one national title.[5][1][6] A total of 213 of his players were drafted, including 28 who reached the major leagues.[7]
Weinstein left Cal Poly to become the manager of the Class A–Advanced Modesto Nuts in the California League in 2007, and managed them through 2011.[3]
The Colorado Rockies added Weinstein to their major league staff before the 2012 season.[5] After the 2013 season, the Rockies reassigned Weinstein, putting him in charge of player development in the minor leagues.[10]
In the summer of 2016, Weinstein was the Wareham Gatemen Head Coach in the Cape Cod Baseball League.[11] In 2019, Weinstein returned to manage Wareham again after a two-year hiatus.
In 2017, Weinstein was the manager of the Hartford Yard Goats, in the Double-A Eastern League, in the Colorado Rockies organization.[12][6] The 73-year-old observed: "They hired an old goat to manage the Yard Goats,".[13] In 2018, he stepped down as manager but remained in the organization as Rockies player development and scouting special assistant, performing scouting and player development tasks at the discretion of Zach Wilson, the Rockies player development director, and the Rockies' organization.[14][15][16][17]
In 2019, Weinstein again managed the Wareham Gatemen in the Cape Cod Baseball League.[7] He was scheduled to managed the team again in 2020, before the season was canceled due to the COVID-19 pandemic.[18]
In April 2021, Weinstein was named as bench coach for the U.S. national team, for the team's final efforts to qualify for baseball at the 2020 Summer Olympics in Tokyo in 2021.[23] The team qualified, with Weinstein serving as bench coach for the Olympics.[24][25] The team went on to win silver, falling to Japan in the gold-medal game.[26]
Weinstein is a member of the Sacramento City College Athletic Hall of Fame, the California Community College Hall of Fame, and the American Baseball Coaches Association Hall of Fame.[27] He was also inducted into the Sacramento Baseball Hall of Fame in 2017.[28] In 2018, he received Baseball America's Tony Gwynn Lifetime Achievement Award.[29] In 2020 he was named recipient of the American Baseball Coaches Association/Wilson Lefty Gomez Award for contributions to the game locally, nationally, and internationally.[14][30]
Weinstein co-authored Baseball Coach's Survival Guide: Practical Techniques and Materials for Building an Effective Program and a Winning Team (Wiley; 1998), with Tom Alston.[31]
Weinstein’s Twitter page, on which he writes professional analysis of major league plays, has over 26,000 followers.[32][33]
