And this would certainly fall into that category.
It is not like BVB are interested in Mohamed Salah, they want one of Chelsea’s decent players who at times can be very good.
Mourinho knows this and it would be a hard decision to allow Schurrle to leave in exchange for Reus.
That being said, it could well end up being the best option for the clubs and the players, with Reus wanting to win titles and Schurrle wanting to play week in, week out.