Tony Gwynn is by far the most successful career-long Padre, but other, lesser, players have also played all of their major league games in a Padres uniform. Unlike Tony, the vast majority of guys on this list wear the one-team distinction as a testament of their ineptitude rather than their loyalty. The second-longest-tenured career-long Padre played less than 40% as many games as Gwynn, and no other inactive player has played even 8% as many games as him. What follows is a 25-man roster comprised of players who never played elsewhere. For each position I used the leader in games played; if it were a matter of personal preference I'd have a middle infield consisting of Matt Antonelli and Callix Crabbe.
Starting Lineup:
C- Yasmani Grandal (152 games)
1B- Guillermo Velasquez (94)
2B- Tim Flannery (972)
SS- Everth Cabrera (471)
3B- Chase Headley (899)
LF- Mike Darr (188)
CF- Will Venable (756)
RF- Tony Gwynn (2440)
Bench:
C- Dan Walters (84)
2B- Mike Champion (193)
IF- Edgar Gonzalez (193)
OF- Kevin Ward (125)
OF- Kory DeHaan (102)
Starting Rotation:
Tim Stauffer (162 games, 73 starts)
Brian Tollberg (53/52)
Mike Corkins (157/44)
Joe McIntosh (47/33)
Cory Luebke (55/25)
Bullpen:
Nick Vincent (102)
Floyd Chiffer (81)
Rich Troedson (65)
Josh Spence (51)
Mark Schaeffer (41)
Andres Berumen (40)
Kerry Taylor (37)
With current Padres included, that team is subject to change at any point. Say, for instance, if Chase Headley got traded to Toronto tomorrow or something. With guys who could end up playing elsewhere in their career removed from the equation, the team is predictably far weaker.
Starting Lineup:
C- Dan Walters (84)
1B- Guillermo Velasquez (94)
2B- Tim Flannery (972)
SS- Donaldo Mendez (72)
3B- Dave Hilton (161; 119 at 3B)
LF- Kevin Ward (125)
CF- Mike Darr (188)
RF- Tony Gwynn (2440)
Bench:
C/IF- Kevin Higgins (71)
2B- Mike Champion (193)
IF- Edgar Gonzalez (193)
OF- Kory DeHaan (102)
OF- Don Reynolds (87)
Starting Rotation:
Brian Tollberg (53/52)
Mike Corkins (157/44)
Joe McIntosh (47/33)
Rich Troedson (65/19)
Dennis Tankersley (27/16)
Bullpen:
Floyd Chiffer (81)
Josh Spence (51)
Mark Schaeffer (41)
Andres Berumen (40)
Kerry Taylor (37)
Donnie Elliott (31)
Mike Bynum (29)