Luke McCowan has made an outstanding start to life as a Celtic player. There was a lot of hype and excitement when McCowan made the switch from Dundee to Celtic in the summer. And to the surprise of nobody, he has made a brilliant start, including scoring his fourth goal in the famous green and white colours over the weekend. Celtic beat Motherwell 3-0 on Sunday and Brendan Rodgers handed his new signing a start at Fir Park. Captain Callum McGregor was absent through injury after he and the team put themselves through it during their draw against Atalanta in the Champions League. McCowan didn’…