In one of my save at the beginning of 17/18 season, Sneijder, who was a free agent at that time got appointed as a manager of Leverkusen. That season he was doing well, finished at a 2nd position behind Bayern Munich. At the beginning of 18/19 with a couple of match played his team was around 3rd-4th position which is good. The problem is he decided to retire as a player at the end and it results in him kind of leave Leverkusen by a free transfer as shown in the second picture. I think SI should fix this issue to just let the player retire but still stay in a manager position to be more realistic.