TURIN, Italy : Newly-appointed Juventus manager Igor Tudor at his first press conference on Thursday emphasised the urgent need for swift tactical changes to rejuvenate the team's performances. The former Croatia centre-back was appointed Juve manager just after Thiago Motta was sacked on Sunday following two consecutive heavy defeats in a disappointing season, with the Turin club fifth in Serie A - one point off the top four. Tudor, 46, knows he is under pressure to turn things around,