The Boston Red Sox had one of the best pitching staffs in baseball this year, ranking fifth in ERA. However, there’s always room for improvement .

That’s Craig Breslow’s mindset heading into this offseason. While he’s done a good job adding pitching depth over the last few seasons, now his goal is to add more talent at the top of the rotation.

Trading for Garrett Crochet last winter was a great start, but this season proved that the Red Sox still need a legit No. 2 starter behind him — someone like Joe Ryan or Dylan Cease.

On Wednesday’s episode of NESN’s “310 To Left” podcast, Breslow emphasized that Boston needs to focus on adding top-end starting pitching this winter rather than merely accumulating depth.

“What we need to, and what we’ll do over the course of the offseason, is t

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