I am trying to put together a package to offer for Joe Nathan. Right now I am thinking of offering Felipe Lopez, Francisco Cordero or Putz, and Jered Weaver.

I see Lopez as expendable because I have B.J. Upton. I am leaning toward offering Cordero insead of Putz because Cordero has a long track record of high WHIP and ERA for a closer. Then again Putz has had one good season. Weaver I think is expendable given my pitching and does not have a high K rate plus seems like he might be injury prone.

My closest competitor in the league has K-rod so I would like to upgrade my closer. Also I plan to add Luke Hochevar off of waivers to my roster in the next couple weeks so I would like to clear a roster spot and still get some return. I have included my roster and the other team's roster below. Please give me some suggestions on how to structure the trade offer. He already rejected an offer of Cordero and Igawa.

My team
C - Ramon Martinez, BAL
C/DH - Mike Piazza, OAK
1B - Ryan Howard, PHI
1B - Prince Fielder, MIL
2B - Dan Uggla, FLA
2B/SS - Felipe Lopez, WAS
SS - Stephen Drew, ARI
3B - Edwin Encarnacion, CIN
3B - B.J. Upton, TB
3B/OF - Miguel Cabrera, FLA
OF - Carl Crawford, TB
OF - Matt Holliday, COL
OF - Bobby Abreu, NYY
OF - Alex Rios, TOR
OF - Matt Murton, CHC
SP - Jeremy Bonderman, DET
SP - Jake Peavy, SD
SP - John Lackey, LAA
SP - Cole Hamels, PHI
SP - Ervin Santana, LAA
SP - Jered Weaver, LAA
SP - Kei Igawa, NYY
SP - Homer Bailey, CIN
SP - Jeremy Sowers, CLE
RP - J.J. Putz, SEA
RP - Francisco Cordero, MIL
RP - Akinori Otsuka, TEX
RP - Jonathan Broxton, LAD

Other team
C - Paul Lo Duca, NYM
1B - Justin Morneau, MIN
2B - Ray Durham, SF
2B - Rickie Weeks, MIL
2B - Craig Biggio, HOU
SS - Khalil Greene, SD
SS - Orlando Cabrera, LAA
SS - Bobby Crosby, OAK
3B - Hank Blalock, TEX
3B - Eric Chavez, OAK
3B - Adrian Beltre, SEA
3B - Chipper Jones, ATL
OF - Carlos Beltran, NYM
OF - Brad Wilkerson, TEX
OF - Garret Anderson, LAA
OF - Raul Ibanez, SEA
OF - Scott Podsednik, CWS
OF - Jermaine Dye, CWS
SP - Justin Verlander, DET
SP - C.C. Sabathia, CLE
SP - John Smoltz, ATL
SP - Curt Schilling, BOS
SP - Jose Contreras, CWS
SP - Mark Prior, CHC
SP - Kerry Wood, CHC
RP - Brian Fuentes, COL
RP - Mike Gonzaelz, ATL
RP - Joe Nathan, MIN