Charlie Mulgrew has told how he believes Brendan Rodgers has kicked Celtic on and improved the team from the days of Ange Postecoglou’s tenure. Postecoglou brought a brand of football to Celtic Park that blew the Hoops supporters away and encouraged packed-out stands at Parkhead every second week. When Brendan Rodgers returned last season, that style of football seemed to have gone but now, Charlie Mulgrew believes that despite Celtic’s problems last season, he believes the Hoops gaffer has improved the style of football from the Postecoglou days. Mulgrew blown away by Rodgers’ ‘unbelievable’ …