Craig Breslow had a sneaky-good offseason as Red Sox general manager NBC Sports Boston [Video]

There’s an underrated aspect to this surprisingly solid start for the Red Sox: Craig Breslow signed the right players.

He didn’t sign enough of them, and that’s on ownership. But looking forward, if John Henry ever lets his chief baseball officer spend more aggressively, there’s evidence that Breslow knows what he’s doing.

It was right there in Sunday’s 5-4 victory over the Cubs, when offseason acquisition Tyler O’Neill blooped a walk-off single to left to continue a torrid start that hasn’t even been slowed by a concussion. O’Neill leads the American League in on base percentage, slugging, and OPS, and he’s second only to Mike Trout with nine home runs.

He didn’t seem like much of a pickup when the Red Sox swiped him from the Cardinals for pitchers Victor Santos and Nick Robertson to maybe serve as a platoon outfielder, but he has instead emerged as the steal of the winter.

It’s not just O’Neill. Down at Triple-A, …