I have started researching and possibly there are far better baseball heads out there with research on team changing top of the order pitchers:
- Curt Schilling (from Phila to AZ) for 1B Travis Lee and pitchers, Vincente Padilla, Omar Daal and Nelson Figueroa (D-Backs 2000)
- Curt Schilling (again from Houston to Phila) for Jason Grimsley (P) (Phillies-1992)
- David Cone (from Tor to NYY) for pitchers Marty Janzsen, Jason Jarvis and Mike Gordan (NYY-1995)
- Randy Johnson (from Seattle to Houston) for pitchers Freddy Garcia and John Halama and SS Carlos Guillen (Houston-1998)
- Victor Zambrano (TB to NYMets) for P Steve Kazmir (NYM-2004)
- Doyle Alexander (Atl to Detroit) for P John Smoltz
- Rick Sutcliffe (cleve to Chi) for OF's Joe Carter and Mel Hall and P's Schultze and Daryl Banks.
This is just a short list but except for Smoltz and Kazmir the advantage is acquiring a true top level pitcher. The problem is acquiring something less or not truly having a WS team.