The Cubs’ acquisition Monday of left-hander Drew Pomeranz from the Mariners was the beginning of what’s expected to be the in-season approach to fortifying the bullpen.

When the bullpen became a trouble area early on last season, the Cubs made a series of in-season moves that helped stabilize the group. The front office is once again keeping an active eye on which ar

The Chicago Cubs announced Monday that they acquired Pomeranz, the 2010 No. 5 pick, from the Seattle Mariners for cash. Pomeranz, 36, is expected to join the first-place Cubs on Wednesday during their series against the Los Angeles Dodgers. Pomeranz recorded a 4.66 ERA and 14-6 K-BB ratio over 9.2 innings at Triple-A Tacoma.