I would argue against keeping more than 1 pitcher. Take Piazza, Green, Soriano, and either Prior or Hudson. Just my opinion. It seems easier to pick up good pitchers as sleepers or during the first few weeks of the season if you're quick on the draw.
I agree that you can find good pitching cheap in the draft and early in the waiver wire, but by good pitching I mean Padilla, Odalis, Wolf, Ishii, Glavine, Lowe (last year). You have to be lucky and good to get these guys. You can also find good outfield help cheap, anyone remember where Beltran, Burrell, Damon, and Anderson were drafted last year? Remember where Ichiro went before his 'rookie' year? And next year will you remember where Matsui goes? I don't think any of them are better than Green, but also don't think you are going to find a SP better than Hudson available.
I think Soriano is a must keep, Piazza is a keeper and if you can keep forever Prior is a must keep (I see 250 K's annually)
Judging by the mock draft, Hudson belongs on the fringe of keeper-dom while Green is a definite keeper, Prior on the other hand, made it to the 8th round, so maybe he would make it back to you...
Sorry, but I can't get comfortable with Piazza. History shows catchers breaking down around this age. Maybe I'll be wrong, but I'd rather keep two aces and hope to get Piazza in the 1st/2nd post-keeper draft.
I'd love to see you make a trade here - Hudson/Green for an even better of, for example. Barring a trade, I'd definitely keep Soriano, but which one out of Piazza, Prior, Hudson and Green to drop is tough.
Piazza may begin to deteriorate, but with twelve teams, dropping him would be awfully tough.
Green is very good, but of's are easy to find.
Prior has the least value of these four, but the greatest potential as a keeper.
Hudson is first-rate, and should remain so for many years.
Pick your poison; dropping any of these stars is tough. I'd probably wind up deciding between Hudson and Green...
Drop Soriano? Come on now. Even if he regresses, a 30/30 guy at 2b is gold. Hudson is nice, but with better players and only 4 keepers, hes not really a good option. Soriano/Green/Piazza are easy locks. The only choice is Hudson or Prior, and i would lean Prior. Yes, outfielders are plentiful, but few as good as Green. Although Prior didnt have alot of innings, his whip was better then Hudson has ever posted. Fwiw, Shandler has Prior with a lower projected era.