Dan Bernstein and Leila Rahimi opened their show by reacting to the first week of MLB umpires checking pitchers for foreign substances, which culminated with the first such ejection Sunday, when Mariners left-hander Hector Santiago was tossed against the White Sox. After that, they debated whether the Cubs should be buyers or sellers leading up to the trade deadline on July 30. Do the Cubs have an obligation as a big-market team to be a buyer even with all their roster uncertainty beyond this season?