The provisional Scotland squad has been hogging the headlines this week as Celtic prepare to take on Rangers in the Scottish Cup. And it’s probably just as well. The big Glasgow Derby always comes with a tinge of nervousness for both the Celtic and Rangers fans and the Scotland chat has brought a welcome distraction to that. Especially for Kenny Miller. The former Rangers striker was sounding really worried earlier this morning about his old team’s chances of beating Celtic. As Miller contemplates another possible derby defeat, he takes the time to admit that he was shocked that one Celtic pla…