CJ knew Iowa's offense was outmanned. Knew he had to make 'super-human' plays to defeat Florida's defense. Not Iowa running backs who were bottled up by the Florida defense. Not Iowa receivers who were terrapins compared to Florida's defensive back hares.
The Iowa defense gave a good showing early. Iowa's offense gave points away. Iowa's offense couldn't do anything.
CJ tried to change that and Iowa was burned.
Remember the, for example, end of the Iowa VS. Stanford game in the Rose Bowl? Iowa's offense was still churning, scoring points even though so, so, far behind. I remember CJ slamming the ball into the turf at the end of that game for an offensive line infraction that stalled an Iowa drive.
I also remember the changed attitude, the feeling of dispair on CJ as the score climbed to 30-6. CJ had given up. He didn't think Iowa could do anything offensively against Florida.