Ken Davidoff compiled a nice little list of moves that Cashman was responsible for, had some/little influence on, and had nothing to do with. Figured I would share, as I found it pretty interesting.
http://blogs.trb.com/sports/baseball/blog/2008/09/a_brian_cashman_audit_and_ther.html
Cashman All The Way:
Bobby Abreu, Alfredo Aceves, Armando Benitez, Wilson Betemit, Kevin Brown, Brian Bruney, Shawn Chacon, Tony Clark, Roger Clemens (both times) Johnny Damon, Kyle Farnsworth, Glenallen Hill, Kei Igawa, David Justice, Al Leiter, Cory Lidle, Hideki Matsui (re-signing in November 2005), Damaso Marte, Tino Martinez (his return), Jose Molina, Mike Mussina (re-signing in November 2006), Xavier Nady, Denny Neagle, Carl Pavano, Andy Pettitte (his return), Sidney Ponson (both times), Darrell Rasner, Mariano Rivera (re-signing in November 2007), Alex Rodriguez (the 2004 trade), Ivan Rodriguez, Javier Vazquez, Robin Ventura, Jose Vizcaino, Bernie Williams (re-signing in December 2005), Jeff Weaver
His Player, Not His Price:
Jason Giambi, Sterling Hitchcock (re-signing in December 2001), Steve Karsay, Jorge Posada (re-signing in November 2007), Rondell White, Bernie Williams (re-signing in November 1998)
Above Cashman:
Aaron Boone, Jose Contreras, Dwight Gooden (return in 2000), Chris Hammond, Orlando Hernandez, Randy Johnson, Travis Lee, Jim Leyritz (re-signing in November 1999), Jon Lieber, Esteban Loaiza, Kenny Lofton, Raul Mondesi, Alex Rodriguez (re-signing in November 2007), Gary Sheffield, Ruben Sierra (return in June 2003), Darryl Strawberry (his re-signing in November 1998), David Wells (return in December 2001), Jaret Wright