If the Cubs make it into the postseason as a wild card team, who will start the one-game playoff: Jon Lester or Jake Arrieta?
Of course, there are still six weeks left in the regular season and even if the Cubs were in that position, it would depend heavily on how much rest each pitcher was working on.
But it makes for an interesting debate inside Chicago bars in mid-August.
Joe Maddon has a simple solution:
"Let's win the division," he said.
The Cubs entered play Friday 7.5 games behind the St. Louis Cardinals in the NL Central and 1.5 games behind the Pittsburgh Pirates for the first wild card spot.
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Cubs GM Jed Hoyer cautions how much things can change in the final month-and-a-half of the season, even if the team has won 13 of 14 coming into the Crosstown showdown at U.S. Cellular Field.
"I thought Joe's answer was the right answer," Hoyer said. "Let's have a five-game series and forget about it. First of all, I think it's great that we have two guys you can have that discussion about. The fact both these guys are pitching so well is part of why we're here in a lot of ways.
"But also, I look at it as, this is a moment in time right now. We've been really hot. We put ourselves in a great position. ... We have a long way to go, so to even talk about that kind of stuff is so incredibly premature. We have to grind it out, game after game.
"The hot streak is great, but we still gotta play the next six weeks. And the next six weeks have a lot of challenges ahead. I think we've answered all our challenges so far and hopefully we'll keep on answering them."
The Cubs signed Jon Lester to a $155 million deal in the offseason to come in and lead the pitching staff after winning two World Series rings with the Boston Red Sox and starting that epic AL wild card game for the Oakland A's against the Royals last season.
Lester got off to a rough start in Chicago, with a 6.23 ERA in four April starts. But since May 1, the 31-year-old lefty has gone 8-6 with a 2.69 ERA.
He's been especially hot the last six weeks with a 1.92 ERA and 63 strikeouts in 56.1 innings over eight starts.
But Arrieta has put up one of the best seasons of any pitcher in Major League Baseball, going 13-6 with a 2.38 ERA and 0.99 WHIP, including a 7-1 record and 1.23 ERA since June 21.
Lester has also had issues throwing to first base this season, allowing the most stolen bases among all big-league pitchers (35, six more than the next closest guy), including five against the Milwaukee Brewers on Thursday at Wrigley Field.
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Three of those stolen bases came during a third inning that also featured a throwing error by Lester on an attempted pickoff.
An opposing team can really take advantage of that in a one-game, winner-take-all situation.
But the Cubs don't appear very concerned with Lester's "yips," as Hoyer pointed to David Ross' ability at "back-picking" runners on base and referencing Lester's delivery time to home plate.
"Yesterday, obviously, that third inning was uncomfortable for everyone," Hoyer said. "But then you go back to May 1, after his April starts, and Jon's been one of the best pitchers in baseball. He hasn't been giving up many hits, his walk-to-strikeout ratio has been great.
"The focus is he's been one of the best pitchers in baseball for the last three-and-a-half months. I think it's something he certainly knows he has to work on and he will work on, but at the same time, David and Jon have done a good job limiting that. I just expect he'll continue to pitch the way he is."