Rockies will keep four-man rotation, 75-pitch limits for 2013

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Colorado’s switch to a four-man rotation with starters on 75-pitch limits hasn’t exactly worked wonders, but the Rockies are sticking with that setup for the remainder of this season and plan to continue using it next year as well.

Troy Renck of the Denver Post reports that they’ll make a slight change, essentially pairing each starter with a “piggyback” reliever who’ll be expected to throw around 50 pitches. And in theory 75 pitches from the starter and 50 pitches from the reliever would get the Rockies deep enough into games to then rely on more traditional bullpen usage.

Coors Field and pitching at altitude has made it extremely tough for the Rockies to get consistently good or even decent starting pitching for basically their entire existence, so experimenting makes some sense and pairing pitchers is an interesting concept. Of course, it’s worth noting that the switch to a four-man rotation hasn’t really done much good so far.

Before the switch Rockies starters had a 6.28 ERA and since the switch Rockies starters have a 5.61 ERA. So they’ve been better but still really, really bad and the extra stress placed on relievers has caused the bullpen ERA to rise from 4.00 before the switch to 4.52 since. Basically all the improvement with the rotation has been canceled out by the bullpen getting worse (and throwing more innings).

Overall their team ERA was 5.38 before the switch and is 5.04 after the switch.

Cubs acquire Martín Maldonado from the Royals

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Last night Cubs catcher Willson Contreras was placed on the injured list with a strained muscle in his right foot. That injury inspired the Cubs to go out and get another catcher. They acquired Martín Maldonado in a trade with Kansas City in exchange for lefty Mike Montgomery, in a deal that was announced after the Cubs loss to the Reds.

Maldonado, 32, was a Gold Glove winner in 2017 with the Angels. At the moment he’s hitting .227 with six homers and 17 RBIs in 74 games. Obviously, though, defense is his calling card, as he’s a .220 career hitter with 57 homers and 210 RBIs in 686 games.

Montgomery, 30, is 1-2 with a 5.67 ERA in 20 relief appearances for the Cubs this year. He’s heading back to where his pro career began. He was drafted by Kanas City in 2008, though he was traded away in the James Shields/Wade David/Wil Myers deal in 2012. He made his big league debut for Seattle in 2015. Dayton Moore said last night that the Royals plan to use Montgomery in the rotation as a replacement for Homer Bailey, who was dealt to Oakland on Sunday.