No. 10) Danny Tartabull 1991
After finishing fifth in Rookie of the Year voting, the Mariners traded Danny Tartabull to the Kansas City Royals. The powerful outfielder put together a great inaugural season with the Royals. In that 1987 campaign, Tartabull finished 17th in MVP voting after hitting 34 home runs and driving in 101 runs. He hit .309/.390/.541, while scoring 95 runs.
However, things began trending downhill after that. His 1988 season was still solid. Tartabull’s next two years were incredibly pedestrian. Then, in his contract year, Tartabull put together one of the best seasons in Kansas City Royals history.
Tartabull played just 132 games in 1991, but he sure made the most of those games. In his final season before signing with the New York Yankees, the right-handed hitting Tartabull hit 31 home runs and 100 RBI. He put up better power numbers in 1987, albeit it in 158 games, but his 1991 campaign showed massive improvement in slugging. His batting average and on-base percentage each improved seven points over 1987, while his slugging percentage jumped 52 points to a league-leading .593.
The season earned Tartabull his only All-Star nod. Even still, Tartabull cranked out a few solid seasons with the Yankees, plus another great campaign in 1996. Tartabull incredibly drove in at least 96 runs in a season for four different franchises, while also becoming the only player in Kansas City Royals history to hit 30-plus home runs twice.