Not many Stanford walk-ons in recent memory have had the impact David Parry has had in his career as a nose tackle. Yet he is about to play in his fourth bowl game, the Foster Farms Bowl on Dec. 30 against Maryland. What’s more, he was an All-Pac-12 honorable mention this year and a first-team All-Academic selection with a 3.2 grade-point average as a political science major. Maryland will be the third Big Ten team he has faced in a bowl game. The one he really wanted to play was his home-state school, Iowa, so “I’d get the chance to show those guys what they missed.” The Cardinal have had other walk-ons become starters, among them wide receivers Ryan Whalen — who later played a couple of years for the Bengals — and Griff Whalen, currently on the Colts’ practice squad after returning punts and kickoffs most of the season. Parry, a 303-pound load of muscle, hopes to follow them to the NFL. When nobody was willing to offer him a scholarship, he arrived on the Farm in 2010 as an unheralded offensive lineman, probably ticketed for the scout team. Defensive line coach Randy Hart had only two nose tackles, Sione Fua and Terrence Stephens. Besides Hart, the coach who turned him into a D-lineman was the late Chester McGlockton. “Up until this year, David Parry has been a solid defensive lineman who didn’t do much in the nickel,” Shaw said. David Shaw is mentioned as a possible candidate for various NFL head-coaching jobs and then insists he’s not interested because he’s perfectly happy at Stanford. ESPN.com reported Sunday that, despite being considered “perhaps the top coaching candidate in the college ranks,” Shaw intends to stay put. In his fourth season as head coach, Shaw, 42, led the Cardinal to their sixth straight bowl invitation.