Celtic’s desire for a left-back may not come as quickly as Brendan Rodgers would like.With Nicolas Kuhn’s winger on the door, the team’s next two main priorities seem to be left back and striker.Well, one left winger who has been on Celtic’s transfer radar amid a lot of interest is Estoril’s Tiago Araujo.The Daily Record reports that the Portuguese value Tiago Araujo at £4m, but that’s a fee the club simply won’t pay.It has been suggested that the Parkhead authorities “don’t value him in the same stadium as Estoril”.If that is the case, it suggests the club are not only willing to pay less for the 22-year-old, but significantly less.Look, the winter transfer window is still a few weeks away, but it clearly suggests that a deal may not happen here.Celtic are obviously not going to change their mind and put that kind of money on the table, it would be a surprise if that happened, so something has to happen on the other side.Greg Taylor Needs HelpAlexandro Bernabei is still listed and all parties are expected to try to get him out this month.Whether he leaves or not, he won’t play, leaving Greg Taylor as the last man up at left tackle.This is not about changing the player. But only by helping him. Bringing competition thus forces him to raise his standards.Also, what happens if he gets hurt? This forces the Manager to play a number of positions.And while Greg Taylor may not realize it, to be at the top of his game, he needs someone to give him the right challenge..