A’s Move Jack Perkins Into Rotation

Jack Perkins will make his first start of the season for the A’s on Friday. The second-year righty will go opposite Peter Lambert to kick off a weekend series with the Astros.

Manager Mark Kotsay told Martín Gallegos of MLB.com this week that Perkins will be part of the rotation. The A’s have lost Aaron Civale and Luis Severino to injury within the past 10 days. They optioned struggling left-hander Jacob Lopez to Triple-A on Tuesday. That has overhauled three-fifths of the rotation they’d used for most of the season.

Top prospect Gage Jump was called up when Civale went down. He had a shaky debut against the Mariners but fired seven innings of one-run ball to beat the Cubs in his second career start. They brought up another rookie, Kade Morris, this week. He’ll make his MLB debut on Saturday against Tatsuya Imai in the second game of the Houston series. Morris doesn’t have Jump’s upside but is viewed as a potential back-end starter.

Jeffrey Springs is the only member of the season-opening starting five currently in the rotation. Luis Morales opened as the fifth starter but pitched poorly and was optioned in early April. He’s now working short relief in Triple-A and still struggling.

J.T. Ginn moved from the bullpen to take Morales’ rotation spot and has had a quietly strong year. He carries a 2.74 ERA with a 23% strikeout rate over 65 2/3 frames. Ginn pitched six innings of one-run ball against the Cubs tonight, but a bullpen meltdown spoiled the strong start. The A’s gave up four in the bottom of the ninth and got walked off.

They’ll hope that Perkins can make a similarly successful transition from relief. The 26-year-old has started four of his 29 big league appearances. The A’s brought him up last June as a multi-inning reliever. They moved him to the rotation in August until a shoulder strain ended his season. Perkins opened this season at Triple-A Las Vegas. The A’s recalled him in early April.

Perkins owns a 5.46 ERA across 28 innings on the season. He’s striking out 26.4% of opponents behind an excellent 14.3% swinging strike mark. Perkins has also halved his walk rate, but he has hit six batters. He issued a lot of free passes at every stop throughout his minor league career. This year’s 5.6% walk percentage is probably a blip, but Perkins has quality stuff. He’s sitting in the 96 mph range with his fastball while getting lots of chases and whiffs with his breaking ball and changeup.

The next few weeks will essentially be audition time for all three of Jump, Perkins and Morris. The non-Lopez depth starters at Triple-A (i.e. Morales, Joey Estes and Chen Zhong-Ao Zhuang) have not performed well. Mason Barnett is in long relief but would probably be the next one up for a rotation look if Perkins or Morris falter. Braden Nett, acquired in the Mason Miller trade, just came off the Triple-A injured list. Last year’s first-round pick Jamie Arnold is at Double-A and has been inconsistent.

Pitching, starting and relief, would be the apparent priorities for the A’s if they’re in position to add at the deadline. They sit 2.5 back of the Mariners in the AL West after today’s tough loss. They’re in possession of the final Wild Card spot despite being two games under .500 at 30-32.