Weinstein managed Team Israel at the 2017 World Baseball Classic qualifiers, in September 2016, and during the main tournament the following March (2017), in South Korea and Japan.

[4] He was an assistant under Ron Fraser on the 1984 University of Miami baseball team, which came in fourth at the College World Series.

[1] After returning to Sacramento City College, Weinstein served as director of player development for the Los Angeles Dodgers in 2000 and 2001, and then coached for California State Polytechnic University, San Luis Obispo (Cal Poly) from 2001 through 2005.

[10] In the summer of 2016, Weinstein was the Wareham Gatemen Head Coach in the Cape Cod Baseball League.

In 2017, Weinstein was the manager of the Hartford Yard Goats, in the Double-A Eastern League, in the Colorado Rockies organization.

[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.