CHICAGO — A Chicago Cubs employee bent down near third base an hour before the team’s 6-1 win over the Cincinnati Reds on Friday and carefully scooped a handful of dirt into a glass vial. After the season, the vial of Wrigley Field dirt will be mailed to a season ticket holder as a reward for their loyalty to the organization. The Cubs also acknowledged their fans with a specially cut design in the outfield grass that read “THANK YOU” under a team logo, surrounded by the words “Chicago Cubs Season Ticket Holders.” You might be wondering why the Cubs are focusing on season ticket holders instea…