Could it be that you or Nordeus confused Player Academy with Youth Academy? Player academy is in the Training menu, where they offer a set of training options that costs either a lot or takes half the season for our player to complete and come back. In youth academy, we are offered different “special coaches” all of which past 1 day. Regilar coaches who are always available takes until the end of season.

And the special sponsor task is about the player academy that is in the training menu.