Thornburg was 8-5 last season with a 2.15 ERA in 67 games. He also split time as closer, registering 13 saves in 67.0 innings pitched. He’s only 28, so he has an opportunity to develop more.
Dubon was drafted in 2013 and has bounced around the minors, and was listed as Bostons No. 12 prospect. He batted .339 in AA this past season in 62 games with Portland. He’s only 22.
Shaw played two seasons in Boston, splitting between first and third base over his career. In 145 games he hit 16 HR’s and 71 RBI, with a .242 average and a .306 OBP. The “Mayor of Ding Dong City” was projected to earn less than $1 million next season.
Josh Pennington did well in the New York Penn League, going 5-3 with a 2.86 ERA in 13 games (all started). In 56.2 IP he struck out 49. He was also Bostons #22 prospect in their system.