Knock on that wood table next to you.

This is about those Huskers on the 2018 a team can least afford to lose. The most indispensable Huskers, as we are labeling it. That doesn't mean a ranking of the best Huskers in order. This factors in not just talent, but depth at each player's position into the conversation. If a certain player was lost for the season, how many people in the stadium would simultaneously say words of which their grandmother would not approve at the same time? How big is the gap between one player to his backup?

The three of us here at Husker247 — Michael Bruntz, Mike Schaefer and Brian Christopherson — each voted on 20 guys without seeing the other guys' list, tallied our votes together and came up with a top 20. With this mystery team and its share of newcomers who might be key players right away, plus a new staff in charge, it wasn't an easy list to figure. Try the exercise at home if you will. Kind of tough. Sure to look out of order come November. Here goes anyways.

No. 20: Antonio Reed; No. 19: Tristan Gebbia (or Adrian Martinez); No. 18: Tyjon Lindsey; No. 17: Jack Stoll; No. 16: Lamar Jackson; 15: Ben Stille.

No. 14: DiCaprio Bootle; No. 13: Matt Farniok; No. 12: Caleb Lightbourn; No. 11: Dedrick Young; No. 10: Jerald Foster; No. 9: Mick Stoltenberg.

No. 8: Luke Gifford; No. 7: Greg Bell; No. 6: Carlos Davis; No, 5: JD Spielman; No. 4: Tanner Farmer.

No. 3: Aaron Williams

Every coach Aaron Williams has had seems to be a fan. That's no insignificant statement either since he has had about as many position coaches as a guy could possibly have in a four-year career that didn't even include a redshirt. Now his leader is Travis Fisher, and predictably, Fisher likes him too. Near the end of spring, Fisher still was sorting out who might be slotted where on his depth chart, but there was one name he brought up in a sort of "Of course he's going to be a main guy" way. Yep. It was the senior from Atlanta.

Nebraska's back end of the defense was a mess for many reasons last year, but one was that there never really was consistency who played at safety due to injuries. The Aaron William-Joshua Kalu connection never really got to form. Williams was limited to nine games, and the defense suffered even more when his knowledge wasn't on the field. When he played, he got some things done, including a pick six against Wisconsin, and three takeaways total to go with 48 tackles. Most importantly though, Williams is basically like the captain of that secondary. With unproven corners and a safety next to Williams who doesn't have many (or any) starts to his name, he is the guy that will need to lead the communication in 2018. He can get better, but he's a security blanket for others learning as they go. Even when he was a freshman in 2015, coaches were talking about his high football IQ. He's three years older now. The best should be ahead. And, according to Williams' own words in the spring, he's taking to Fisher's message that guys need to hold their peers more accountable.

"I'd say the DBs, right now, this year more than anything, I feel like we're pushing each other more and more, and that's coming from Coach Fish," Williams said. "He said we take it too easy on each other. So we're learning how to push each other more and more. So that's the biggest thing right now." At 5-11, 190 pounds, Williams may not be the biggest dude on the field, but he's never been afraid to have a loud bark.