You can always pick out any number of failures that lead to a loss, and this had many. But replacing a bad kicker is the easiest correctable one. I could see he was a major problem this season, way back in the preseason.
Don’t forget MLF passing on kicking a FG at the 14 yard line in the first quarter, especially when you’re a 10 point underdog on the road. But Carlson would have probably missed that one, too.