Top 5 players to play for the Colorado Rockies and Oakland Athletics

Jason Giambi of the Colorado Rockies and Oakland A's — WASHINGTON, DC – JULY 07: Jason Giambi #23 of the Colorado Rockies bats against the Washington Nationals during the ninth inning at Nationals Park on July 7, 2012 in Washington, DC. (Photo by Rob Carr/Getty Images)

3. Jason Giambi

MVP, MVP Runner-Up, All-Star, Silver Slugger, veteran presence for the Rockies in 2009, fan-favorite, one-and-done HOF ballot appearance, admitted cheater. All of these things describe Jason Giambi.

2. Walt Weiss

In 1988, Walt Weiss became the Oakland Athletics’ third Rookie of the Year in a row, following not-at-all-controversial figures Jose Canseco and Mark McGuire. Weiss never quite became the superstar that they did, but then again, he might not have had the same skill access that McGuire and Canseco did. Weiss was a Colorado Rockies and Oakland A’s starter for many seasons, seeing most of his time with the A’s, winning a World Series with the club in 1989. He was also a starter during the Rockies 1995 postseason team, though his offense never rose to the level that the Blake Street Bombers did.

The A’s took Weiss in the 1st round of the 1985 draft and would spend 8 years within the organization. After retirement, Weiss became Head Coach for the Rockies and kept the position from 2012 to 2016, some very tough rebuild years for the team. While his time with the Rockies and A’s never made him a superstar, he has definitely made his mark in the history of both franchises.

3. Jason Giambi

2. Walt Weiss

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