It's no mystery why we love underdogs.
Respected football minds who get paid to assemble NFL teams dismissed them out of hand, scratched them from their draft lists, cut them in training camp.
Yet these players survive. They're too driven to give up. Not all of them become stars, but that's not necessary to become a precious asset on a team.
Said Buffalo Bills head coach Chan Gailey: "You have to have them. There's no way to play the game without them."
Overachievers have dominated the AFC East this year. Late-round draft picks, players who weren't drafted at all and castoffs from other teams have starred for every team, including the MVP favorite (Tom Brady), two leading rushers (BenJarvus Green-Ellis and Fred Jackson), three leading receivers (Wes Welker, Steve Johnson, Davone Bess) and three sack leaders (Cameron Wake, Mike Wright and Kyle Williams).
These thriving underdogs are a substantial reason why the AFC East has been so compelling this year.
"It's football," said Jim Jensen, the ultimate survivor with the Miami Dolphins. They drafted the Boston University quarterback in the 11th round in 1980, and he stuck around until 1992 as a receiver/wedge buster/long snapper/third-down fullback/holder/tell me where to go, Coach, and I'll hit them.
"I like to watch guys that are working hard and working for the team," Jensen said. "They're working for a goal. They're not selfish. Wes Welker is a great example. He just loves to win. He's unselfish. Davone Bess is another one who's an inspiration to watch."
There's a reason the conquering underdog is such a common theme in Hollywood.
"These guys have something to prove," said film producer Mark Ciardi. "There's enough of these stories where these guys just survive and climb over players teams have a lot of money invested in. It's just a different thing when you've got to prove people wrong. They know they've got to check way more boxes than other people to succeed."
Ciardi pitched for the Milwaukee Brewers despite being a 15th-round draft choice in 1983.
"I got no money to sign," Ciardi said. "I was the last guy on the pitching squad of 17 guys in rookie ball. I had no chance."
Four years later, Ciardi made it to the majors. He started three games and pitched another in relief. He defied the odds, which is why he finds stories about unlikely heroes so appealing.
Among his true-story films: "Invincible" (about Philadelphia Eagles walk-on Vince Papale), "Miracle" (about the 1980 U.S. Olympic hockey team), "The Rookie" (about 35-year-old rookie pitcher Jim Morris) and "Secretariat."
All of those motion pictures portrayed an undeniable will to win, a theme that has carried Ciardi throughout his career. He sees it in such players as Brady and Patriots running back Danny Woodhead.
"What I realized was you've got to work extra hard," Ciardi said. "Nothing will be given to you, but you have an opportunity. The only way you're going to succeed is to snatch it and force them to keep you. If they don't have money invested in you, chances are you're not going to get the same kind of shot."
But having overachievers on the roster means more than a compelling storyline and increased jersey sales.
They often become team leaders and examples for other players to emulate. Underdogs help manage the salary cap because they're cheaper (at least in the beginning). They make draft mistakes much more bearable. They help a front office sell the team to future free agents.
"They're so coachable," former Baltimore Ravens head coach Brian Billick said. "Once they get into it, they realize how tenuous it is to stay in the NFL. Nothing came easy for them. You love having guys like that on your team."
Inquiring about a coach's favorite player is like asking a parent to name his favorite child. But it's easy to guess what type they admire most: the relentless survivors.
"You know what they have done to get to where they are," Gailey said. "As a competitor, you appreciate that. Everybody doesn't end up with a bunch of God-given talent. Guys have to go fight for what they want in life. When those guys get it, it's very satisfying to see it for those guys to make it."
Two players New York Jets head coach Rex Ryan identified as critical to his establishing his defense last year were inside linebacker Bart Scott and safety Jim Leonhard. Neither was drafted. Leonhard had been waived by the Bills, re-signed and then cast adrift in free agency because the Bills viewed him as no more than roster filler. When Leonhard suffered a season-ending shin injury last week, Jets fans got nervous because he was integral to the secondary and special teams.
The NFL-leading New England Patriots are loaded with examples of perseverance. Brady has been such a superstar in the league for so long, it's sometimes strange to think of him as an underdog. But as the 199th pick in the 2000 draft, Brady might be the game's greatest overachiever.
Wake, the Miami Dolphins outside linebacker, leads the league with 12 sacks. He wasn't drafted and went five years between his last down at Penn State and his first in the NFL. Pro Bowl safety Yeremiah Bell was a sixth-round pick who got waived as a rookie and placed on the practice squad.
Buffalo's offense features late-round picks or undrafted players at the three marquee spots. Quarterback Ryan Fitzpatrick was a seventh-round draft choice and a career backup. Jackson didn't start a game for his high school team and came up through Division III and the arena leagues before emerging in NFL Europa. Top receiver Johnson was a seventh-round draft choice.
As inspirational as these players are, they also make slackers look that much worse. Those healthy first-, second- and third-round players who can't get on the field unfortunately aren't wired to battle that way.
"A lot of these guys think it's a right that they have to play," Gailey said. Overachievers "realize it's a privilege to play this game.
"When you got a guy who knows how to fight and understands the fight, understands competition, understands working through adversity and he becomes a good player on your team, then that helps set a tone."
Billick and Edwards emphasized the impact of undrafted players and late-round successes on a roster's overall well-being. Edwards, an undrafted player who started for the Eagles from the opening day of his rookie season, said unearthing overlooked gems are "like getting a free draft pick." Billick noted that they're instrumental to managing the salary cap.
"The residual effect is you don't have to spend those resources," Billick said, "whether they be draft choices or a procurement through free agency to go fill that spot.
"You pick Tom Brady up in the sixth round. Are you kidding me? What that does for your organization ... Even the difference between that and having to draft Matt Ryan third in the draft, the resources you have to spend is just a gift from above."
Heaven-sent is how Patriots fans must view a good chunk of their division-leading team. Dolfans can't be more thrilled with Wake or Bess. The Jets will depend on undrafted starters such as right guard Brandon Moore, defensive end Mike Devito and Scott down the home stretch while certainly missing Leonhard.
And about the only pleasure Bills fans have had this season is watching their unlikely stars because they're such gripping characters.
"An underlying factor to all these stories," Ciardi said, "is the will and the heart that makes them extraordinary on the field."