Until Chicago Cubs left fielder Ian Happ signs an extension with the team, the chances will always remain more likely that the Cubs' All-Star left fielder will be traded as opposed to remaining with the team. Happ is in line to be one of the most sought-after bats in free agency next winter and the Cubs have yet to start any dialogue of consequence with the left-fielder regarding a potential new contract.
At the Major League Baseball trade deadline last season, the Cubs showed hesitancy in pulling the trigger on trades involving Happ and Willson Contreras as the team couldn't find the right deal. Contreras signed with the St. Louis Cardinals this offseason and the Cubs were left with only a compensatory pick for their lack of decisiveness regarding the catcher's status with the team.
The wise move for the Cubs would be to avoid a similar fate with Happ and move the left fielder if it becomes apparent that an extension can't be had. Trading Happ wouldn't have to mean that the Cubs are sellers, however, as a deal could net the team a player that is ready to contribute at the Major League level right away.