By Mauricio Alencar It is rarely a quiet week at FC Barcelona, and in the last few days, ahead of a crucial Champions League match, tensions have heightened as their unique identity – or, more specifically, their club “direction” – has come into sharper focus. Their trip to Italy for a last 16 tie against Napoli on Wednesday comes amid the fallout from comments made by their sporting director and former midfielder Deco in an interview with Portuguese magazine Nascer do Sol. The Brazilian-born executive was speaking about Barcelona’s manager hunt after Xavi Hernandez had announced his decision …