Just out of curiousity, why Walk? Too much of a small ball advocate?
That's enough of a reason for me.
I like most of Steve's list, here's why:
Bob Walk - way too much small ball.
Steve Blass - Don't consider him a real candidate
Joe Torre - overrated, hasn't had an untalented team to manage in years
Art Howe - tried, too old for a young team
Ken Macha - see Art Howe
Lloyd McClendon - in my initial list, I should also added, "or people who have managed here before"
Andy Van Slyke - ego maniac who hasn't had the PR that Showalter and Valentine have had.
Willie Randolph - doesn't seem to understand the game, he had some funky lineups in NYC
Joe Giradi - a monkey could successfully manage the Yankees, while Loria is a goof, not getting along with the owner isn't reason to hire him
Tony Pena - professional emotional outbursts aren't a qualifying managerial skill.
Don Zimmer - see Steve Blass
Lou Piniella - see Steve Blass