[1] After graduation, Morandini attended Indiana University, where he started his college career as a center fielder, moving to the infield as a third baseman and shortstop after his freshman year.

[3] Morandini declined the option to enter the Major League Baseball draft in 1987, citing his desire to play for the United States national team in the 1988 Summer Olympics in Seoul, South Korea.

Morandini graduated as the Indiana University record-holder in several statistical categories, including runs scored (277), doubles (61), triples (29), and stolen bases (127).

[1] Finishing the season with the AA-level Reading Phillies, Morandini hit 5 home runs in 188 at-bats, posting a .351 average.

[5] Morandini won the 1989 Paul Owens Award as the top minor league position player in the Phillies organization.

[1] The move to second base improved his fielding percentage greatly; Morandini cut his errors in half in only one season, posting 11 with Scranton/Wilkes-Barre.

[5] He also earned a short promotion to the major league club; he played in 25 games, hitting 4 doubles and 1 home run in 87 plate appearances.

[8][9][12] Morandini was also the first second baseman in National League history, and the first in the regular season, to turn an unassisted triple play;[10][12] all previous occurrences were made by first basemen or shortstops.

[1] He posted a fielding percentage of .990, making only 6 errors while recording 87 double plays;[18] Morandini's defense throughout his career earned him the nickname "Dandy Little Glove Man".

[19] Morandini made his only appearance in the Most Valuable Player award balloting,[7] tying with Javy López for 24th in the voting.

[20] Morandini's production declined in 1999, as he hit .241 and scored 60 runs, and he chose free agency after the season, signing with the Montréal Expos in January 2000.

[21] He was the head baseball coach at Valparaiso High School[10] until accepting the manager's position for the Williamsport Crosscutters, one of the Phillies' A-level affiliates, for the 2011 season.