Watching Mertz against Indiana and he looks a lot like Spencer. I do not think Mertz is better than Petras. These ratings are based on a very small sample size. I recall Mertz, in Wisconsin's opener, completing everything he attempted. But Illinois did not cover any receiver. They have surely improved since the first game but still did not demonstrate good cover skills last Saturday. Spencer Petras completed 64% of his passes for 220 yards. If we had played Illinois in our first game, and Wisconsin played someone like Northwestern, I have no doubt that B1G quarterback ratings for Petras and Mertz would be much different than they are.