Not forgotten, but had either had a brief stint with Dallas (and later had a better career with another team(s), or suffered injuries derailing a promising Cowboys career), or veterans who arrived in Dallas based on wishful/optimistic thinking by the front office.
Landry years:
Forrest Gregg, Mike Ditka, Herb Adderley, Toni Fritsch, Doug Donely, Todd Christensen, Steve DeOssie, Billy Cannon, Jr., Harold Carmichael, Paul McDonald (lefty QB), and Mike Sherrard.
Jimmy and Switzer years:
Danny Stubbs, Alonzo Highsmith, Jimmy Smith, Ray Childress, Bernie Kosar, Dennis Mckinnon, Willie Jackson, Johnny Mitchell, & Anthony Miller.
Gailey - Garrett years:
Alonzo Spellman, Ernie Mills, Jackie Harris, Dimitrius Underwood, Kevin Hardy, Jeff Robinson, Chad Eaton, Peerless Price, Scott Fujita, Rocky Boiman, Mike Vanderjagt, Martin Gramatica, Danny Amendola, Dan Connor, Brian Walters, Henry Melton, Rolando McClain, & Greg Hardy.