“In the end, there is relief,” Jordi Cruyff says. “There’s a ‘pfff, thank goodness’. And if the signings then fit in and play well, you get a feeling of a job well done.” There was a minute to go before midnight on deadline day, clock running, when the paperwork finally arrived and Barcelona at last knew they could register Pierre‑Emerick Aubameyang, somehow securing a fourth January signing. Six weeks later, he scored twice and gave an assist for Ferran Torres, another winter arrival, in a 4...