Javier Vasquez could be considered to have been a journeyman, as he played for six different teams (and one team twice), but the Puerto Rican hurler was a lot better than he got credit for.

From the Dominican Republic, Pedro Guerrero brought his bat to the National League, playing mostly with the Los Angeles Dodgers.

Baseball fans know what Harvey Haddix is mostly known for.  

In 1959, in a game against the Milwaukee Braves, Haddix pitched 12 perfect innings before losing in the 13^th after an error, an intentional walk, and a home run.  Despite the loss, nobody had ever pitched 12 perfect innings before, and nobody has ever done it since. It is perhaps one of the most incredible performances ever by a hurler. 

Haddix was a lot more than that game.

The lefthander broke into the Majors with the St. Louis Cardinals in 1952 for nine Games, and in the year after, he began a three-year run of All-Stars and was the runner-up for the Rookie of the Year.  Haddix was traded to Philadelphia during the 1956 season, and while he had a losing record in 1957 (10-13), he led the National League in FIP (2.94) and SO/BB (3.49).

Haddix was then traded to Cincinnati, where he played only one year, but he again was the league leader in SO/BB (2.56), and he won his first of three straight Gold Gloves.  Haddix was then traded to the Pirates in 1959, where he had that 12-inning gem.  The southpaw was first that season in WHIP (1.061) and H/9 (7.6), and he would help the Pirates win the World Series in 1960.

He played five more years, with the last two being with the Baltimore Orioles.  Haddix went 136-112 with 1,575 Strikeouts.

One of the most recognized Relief Pitchers of the 1970s is Sparky Lyle, who first debuted in the Majors with the Boston Red Sox in 1967.  Lyle became Boston's closer in 1969, putting forth three straight 15 Save years, but he was deemed expendable, and the Red Sox traded him to the New York Yankees, who, as history would show, gave up nothing in return for him.

Lyle blossomed in New York, setting a then American League record 35 Saves and finishing third for the MVP, and raising the bar for closers.  Lyle was an All-Star three times in the 70s, was a crucial part of New York's back-to-back World Series titles (1977 & 1978), and won the Cy Young in 1977.

Following the '78 World Series win, Lyle was traded to the Texas Rangers, but his skills were no longer there.  He bounced around to Philadelphia and the Chicago White Sox before retiring in 1982.  Lyle left the game with 238 Saves, and he finished 634 of the 899 Games he appeared in.