"It takes a while," he said. "Teams have to have a sense they can't fill the hole internally, and they usually don't come to that conclusion in May."
• Cubs pitcher Jose Veras struck out one of three batters he faced in a Minor League rehab outing Tuesday with Double-A Tennessee. Veras, who has been sidelined since April 24 with a left oblique strain, threw 11 pitches, seven for strikes, in the sixth inning of Tennessee's 4-1 win over Birmingham.
"It's nice to see a 1-2-3 inning and that he got through it fairly quickly," Hoyer said.
There is no timetable for Veras' return.
• Arodys Vizcaino, who has not pitched in the Major Leagues since 2011 and has been rehabbing from Tommy John surgery, was promoted from Class A Daytona to Double-A Tennessee.
"He is progressing," Hoyer said of the right-hander.
• The intracity Interleague series between the Cubs and White Sox will shift to U.S. Cellular Field for two games Wednesday and Thursday. Renteria said he was going to finalize his lineup after Tuesday's game, and decide then who will be the designated hitter.
"I usually sit down after the game and think through what potential lineups we'll use," Renteria said.
When the Cubs played two games at Yankee Stadium in mid April, Olt and Nate Schierholtz were the designated hitters.
• The Cubs and Reds will play a day-night doubleheader on July 8 in Cincinnati to make up for the April 28 game which was postponed because of rain. The first game will begin at 12:10 p.m. CT
• Tuesday's game marked Paul Konerko's final game at Wrigley Field, and Samardzija presented the White Sox slugger with the No. 14 from the Wrigley Field scoreboard as a farewell gift. Konerko is retiring after this season. He finishes 1-for-5 in his career against Samardzija, and that one hit was a home run.
Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.