Each had his moments Saturday morning during the Spring Jersey Scrimmage in Ross-Ade Stadium, sharing time at quarterback with the No. 1 offense.
Unofficially, Etling was 10 of 21 for 110 yards and a TD, and Appleby was 12 of 21 for 104 yards and one interception.
"They've got to play better, obviously," coach Darrell Hazell said. "The young guys have to play better. There were too many drops. You can't drop the football, especially on easy catches. Those 50-50 balls is one thing, but when you have easy completions, you have to make those."
Etling said he planned to spend at least three hours Saturday afternoon watching what he did not do well during the scrimmage the offense won, 48-45.
"You always can throw the ball better," Etling said. "Any drop also is your fault, because you could have put the ball in a better area. A drop is a unit thing, not just a receiver. The quarterbacks always can be better. I know I had a lot of inaccurate balls today.
"As a unit, we were pretty good with ball security. As far as protecting, we were pretty good. If you can make one or less turnovers a game, you can win a lot."
Like Etling, Appleby said there is lots of room for improvement.
"We have lo be more accurate, on time and put the ball on them," Appleby said. "Their job is to snap their heads around and catch the football. The only way to get better catching footballs is to catch footballs, so we are going to throw as many balls as we can to them.
"I felt like I threw it well today, but there always is room for improvement. It's a good way to see where we are going into the final week." - Sophomore defensive tackle Jake Replogle, a converted linebacker, drew praise from Hazell after the scrimmage.
"I love Replogle's work ethic and just how hard he plays," Hazell said. "He continues to get bigger. One of the things we found out last week is that his growth plates are still open, which means he is going to continue to get bigger."
"He has quite a reputation at IU, and I am just trying to do my own thing," Replogle said. "As a competitive brother, I want to have that kind of success of my own."
- With a week remaining in spring practice, Hazell believes this team will be much more efficient than the version that went 1-11 in 2013.
"We looked at some of the numbers on Friday, and some of them were staggering in terms of how low the mental mistakes were," Hazell said. "The thing we asked the defense to do this spring is to get lined up and run to the ball. They have done that thus far."