This is fair, it can be... though in the modern game when you are playing so many fixtures players can be a little more modular particularly when doing the Thursday/Sunday rotation. There is also the possibillity that Thelin jumps between a two and a three this season given the success of the cup final and the possibility of playing at least one team in europe that is significantly bigger than us.
Good question and, not to be a flaky cop out but I'm not too sure (just up and heads a bit woozy, I'll think about it though). I certainly don't want to see anyone rot on the bench though and if we are not seeing any rotation in the cb's at least one will start to stagnate. Let's see where we are come the 1st of september and try and enjoy the fact that on paper we 5 defenders who should be solid and reliable (and when was the last time we could say that?)