And junior defensive end Tyvon Cooper, a former linebacker, points out that a wrong defensive call can lead to major mistakes.
" You have to know what you are doing,'' he said. "Because if you call it wrong, it can lead to a touchdown.
"It's a very tough position to play.''
Reed said that its not only learning the different defensive plays, but it's also learning about the opposing team's offenses.
"At times, I'll admit, that I get confused by so many different things that we have learned,'' he said. "The coaches do a really good job of teaching it to us during the week, but things change from week-to-week and I have to work on adapting better to the game plan.
"At home, I try to watch a lot of film and I try to learn as much as I can about the team we are playing.''
Watson went through a similar situation a year ago, when he earned his starting spot as a sophomore.
"No one thought that Hoey would lead the team in tackles a year ago,'' Danville senior Chris Collier said. "He came up big in big games for us. Both he and Latrey might mess up, but when they are going hard, they help make our defense better.
"They are getting a ton of experience this year and they will be able to pass that down to the younger guys coming up in the program.''
With tonight's season finale against the Urbana Tigers, both Watson and Reed are ready to look towards next season.
"In this offseason, I need to get bigger and faster to be ready for my senior year,'' said Watson, who went thought a major growth spurt before this season, growing 2 inches and adding about 15 pounds. "I was expecting to do really well this year, because I was eating better and lifting weights all during the offseason.