Need some advice on players to keep/trade WHIR

[valnas]

I'm in a 20 team dynasty league, currently in first place thanks in part to chris shelton and his magic bat. Its year 4 and I'm trying to set some trading goals for the year (ie players entering decline that I can get good value for). Here is my roster and categories, I moved tejada for chris carpenter earlier this week, which is pretty much a lateral move age wise but I needed/need pitching. Should I sacrafice more offense for a frontline arm, or ride out my young guns ? How would you rank my young arms ? Any answers are much appreciated.

R, H, 2B, 3B, HR, RBI, SB, K, FPCT, AVG, OBP, SLG,
IP, W, L, CG, SHO, SV, K, HLD, ERA, WHIP, K/BB, K/9

Roto style

C yadier Molina
1B Todd Helton
2B Chase Utley
3B Scott Rolen
SS Orlando Cabrera
OF B. Abreu
OF J. Bay
OF C. Granderson
Util Chris Shelton
BN WM Pena

SP C. Young
SP Odalis Perez
SP Kelvim Escobar
SP Matt Cain
SP B Arroyo
RP Mariano Rivera
RP Mike Gonzalez
RP Braden Looper
RP G. Mota
RP M. Wise
BN Dave Bush
BN Chad Orvella
BN Ervin Santana
BN Chris Carpenter
BN Scott Olsen
DL Todd Jones
DL F. Francisco
DL Wade Miller

[baseballyes]

i think you need another pitcher..you have a lot of guys with high upside but they're question marks. Of the pitchers you got only Matt Cain is really projected to become ace material and I don't think that will be anytime too soon.