Remember, in the summer, when cuadrado was what everyone was talking about, the debate here was whether he was worth the 50 million or not? And Chelsea sign him for what, 30M?
Other things could have changed, but this primarily shows one of two things: 1.) Our incompetence in the transfer market isn't a figment of BF's imagination, proven yet again or 2.) The player himself sees the prospect of the club; rather, his own prospect in the club in a more positive light at Chelsea than at Barcelona.
Either way, ~60m pounds or so is what mourinho has spent so far, netted for sales. Pretty impressive stuff.