The reaction throughout Scottish football to Wilfried Nancy deciding to switch from a four man defence to a back three in his first game as Celtic manager last Sunday was, while a little bit hysterical, understandable to a degree.

The Frenchman is, with Cameron Carter-Vickers out for the season, Alistair Johnston sidelined long-term, Marcelo Saracchi injured and Kieran Tierney continuing to work his way back to full fitness, not exactly well placed for centre-backs and full-backs at the moment.

Was it really wise to change the formation in such an important encounter with William Hill Premiership leaders Hearts after only a few days in the country and a couple of training sessions?

It did not look, with winger Yang Hyun-jun dropping to right-back when the visitors had possession, to b

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