Scout on Aroldis Chapman starting: “Joba Chamberlain all over again”

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Ken Rosenthal talked to a rival scout about the chance of Cincinnati Reds lefty Aroldis Chapman joining the starting rotation, and the scout wasn’t exactly a fan of the transition:

“I hope they do start him, but they’re crazy if they do,” said the scout, who works for another National League club. “It’s Joba Chamberlain all over again.

“His velocity dropped off in the second inning. He couldn’t get his off-speed stuff over the plate consistently. No question in my mind, he’s the closer.”

Chapman averaged 97.7 MPH on his fastball last season, the second-fastest among all relievers, trailing only Kelvin Herrera of the Kansas City Royals (98.5). He finished the year with a 1.51 ERA and 38 saves in 71.2 innings of work.

The scout is referencing the Yankees pitcher who bounced between the bullpen and the rotation since making his Major League debut in 2007. The Yankees went to great lengths to protect his arm, which led to the moniker “Joba Rules” for their refusal to use him on consecutive days.

Though a closer more often than not pitches in some of the most important situations during a game, it is hard to overcome the value of pitching 175-200 innings. John Smoltz, a common point of comparison for starters-turned-relievers or relievers-turned-starters, posted 1.1, 3.2, and 2.2 Wins Above Replacement as a reliever between 2002-04 according to Baseball Reference. Despite the aggregate 2.47 ERA and 144 saves, his best season as a reliever (2003) ranks as his 12th-best season by WAR.

Chapman would have to become more or less average as a starter for the Reds to lose value moving him to the rotation. The average National League starter posted a 4.04 ERA last season.

Rays acquire Wilmer Font from Athletics

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In a less-notable move on Friday, the Rays acquired right-hander Wilmer Font from the Athletics in exchange for minor league right-hander Peter Bayer. Font was designated for assignment by the A’s on Wednesday.

This is the second trade involving the righty since the start of the season. The Athletics acquired 28-year-old Font from the Dodgers in late April, but were underwhelmed by his performance after he racked up 11 runs, five home runs, four walks and nine strikeouts in his first 6 2/3 innings of relief. While the rookie has yet to prove himself at the big league level, he posted a much more respectable pitching line with the Dodgers’ Triple-A affiliate in 2017, going 10-8 in 25 starts with a 3.42 ERA, 2.3 BB/9 and 11.9 SO/9 in 134 1/3 innings. It’s still unclear whether the Rays intend to give him another opportunity in the majors this year or use him as depth in the minors.

Bayer, 24, is still a ways away from cracking any major league roster. He advanced to High-A Charlotte prior to the trade and allowed eight runs, two homers, six walks and six strikeouts in his first four innings.