Brendan Rodgers has spoken for the last two weeks now about Celtic requiring quality to compete in the Champions League. It was clear to everyone that the opposition in these games was targeting Celtic’s left flank as they looked to break down Rodgers’ defence. And it worked. Greg Taylor was found wanting against Lazio as both of the Serie A side’s late goals came down the Scotland defender’s side. So it is clear that an upgrade is required in that area of the team. If not an upgrade, then possibly a wee spell out of the team will do Taylor good so that he can recapture his form of the last tw…