Celtic boss Brendan Rodgers will have several decisions to make on fringe players this summer once his side enter pre-season training. Reports have already suggested that Bosun Lawal could be given a chance to shine following his encouraging loan campaign at Fleetwood Town, though supporters are still in the dark about other individuals. Undoubtedly, it can be difficult for some new additions to adapt to their new surroundings at Celtic. However, a temporary move away can help to integrate the player successfully into Scottish footballing culture. Hyeokkyu Kwon falls into this category. Despit…