Dan Schatzeder was a Montreal Expo twice (1977-79 & (1982-86) where both times he was not considered to be an elite (or even a above average) Pitcher. That did not stop the southpaw from putting together very solid runs predominantly as a spot starter and middle reliever. Schatzeder would be with Montreal for eight seasons and was a lot more valuable than his traditional statistics. He had a 37-31 Record for the Expos.
The son of former star Felipe Alou (and his manager with the Expos) Moises Alou began his successful career in Major League Baseball (save for two games in Pittsburgh) with the Montreal Expos. Alou was an All-Star in the strike-shortened 1994 season where he batted .339 and was also named a Silver Slugger while finishing third in MVP voting. Alou would also have a pair of 20 Home Run seasons for the Expos.
Tanner Roark's first seven seasons in the Majors were with the Washington Nationals where he was predominately been used late in the starting rotation. and has produced for the Nats a solid run. In Roarke's second season (2014), he would go 15-10 with an eighth place finish in WHIP (1.092). He regressed in 2015 and was demoted to the bullpen for a spell, but he came back in 2016 with his best season in Washington with 16 Wins, a sub 3.00 ERA, and was tenth in Cy Young voting. His last two seasons were not as good, but he remained as a starter with Washington until he was traded to the Cincinnati Reds after the 2018 season. Roarke would go 64-54 with 732 Strikeouts.
Daniel Murphy only played two-and-a-half seasons with the Washington Nationals, which came after a long run with the New York Mets where he was poised to be a star in Gotham.