Baltimore Orioles: SP Jason Vargas
With the inexperienced trio of Asher Wojciechowski, Kohl Stewart and Rule 5 pick Brandon Bailey projected to fill the final three spots in the O's rotation, per Roster Resource, adding a proven veteran who can eat some innings would seem like a wise move.
Vargas, 36, posted a passable 4.51 ERA in 149.2 innings last season and shouldn't cost much more than the $1.5 million Ivan Nova received from the Detroit Tigers. It doesn't move the needle, but it couldn't hurt.
Boston Red Sox: RP Brandon Kintzler
Aside from recent low-level trades to acquire Austin Brice and Jeffrey Springs, the Red Sox have done nothing to address a bullpen that ranked 17th in the majors with a 4.