Big series vs. Cardinals shows what Cubs can do when Alex Bregman is hot: ‘Hopefully, I keep that rolling’

ST. LOUIS – The Cubs have managed one of baseball’s best records, all while dealing with pitching injuries and a monthlong early-summer slump. They’re one of baseball’s best offensive teams, third in the sport in runs scored coming into Thursday’s 4-2 extra-inning win over the Cardinals, looking capable of achieving their championship-level goals, should Jed Hoyer’s front office fortify the pitching staff ahead of Monday’s trade deadline. They’ve done it all with big-money free-agent addition…