Because you have no guarantee that he'll sign with your team while trading for him gives you the right to do as you please for 1 year. You just mentioned the Sox and Yanks, only one can get him. Sure, but in the mean time, his value to the Cubs has gone down. Let's say you are Cashman and I am Epstein. We both want him. What are you going to give the Cubs for a guy who you know will likely be non-tendered? I'm not going to give up much at all because if he hits free agency, I can make a run at the guy. Meanwhile, the Cubs get NOTHING for letting Mark Prior go. NOTHING AT ALL. Bad deal. It's not like the Cubs never pay people to rehab. For a team which paid Ryan Dempster, Scott Williamson, and Wade Miller to rehab and Rusch to sit at home to non-tender a pitcher of Prior's potential is foolish. I don't care about how Prior feels. I don't care if he hates the Cubs. What I do care about is that he wants a big contract and I want to win the World Series. To get that big contract, he needs to pitch and pitch well. If he does pitch well, it'll certainly be better than what we saw from Wade Miller last year. Or Jason Marquis. Or Ryan Dempster. Or even Sean Marshall. Prior pitching well means that the Cubs have an additional above average pitcher in their rotation, and that'll get them closer to the World Series. I let his coming free agency sort itself out after next season. Winning can salve a lot of wounds. And if the wounds are irrevocable, he walks. So what? There's an old saying: cross that bridge when you get to it (I'd also say that don't borrow trouble also applies). Don't play the $3M game for nothing game with me, either. Seriously, that's crazy talk. The Cubs have plenty of money, and could certainly carry Prior's contract cost. It's not like they can't afford it. So by claiming I can't say tossing away 3 million dollars plus the cost of rehab as part of my argument because you think 3 million dollars is nothing to a team? You actually think "chemistry" will help turn Prior into a Cub if A goes right, then B then C then D? I understand signing and then trading him but to just pay to rehab....and let's not forget, Prior may ask for a raise in arby too and get it, and to lose him anyways is just wasting money. Also, what guarantee do you have that he will be an effective pitcher? How did that work for Miller who also had a shoulder injury? Did he get his velocity back? If Prior is throwing under 92 what good is he to the Cubs in August or September if the Cubs are in a pennant race? Will the Cubs have the room to let him work the kinks out if he ever does come back that early? All I can see from posters that want Prior to stay is that he'll regain his form and be back to normal and make 15 to 20 starts and what I'm saying is not logical? I think that's just wishful thinking for a player you guys love and hope he reverts to his old form somehow. I like Prior and I'd LOVE to have him back to pitch like he did but imo he will never be that pitcher again and I'm not deluding myself into thinking he will. Does he have potential, sure since he was a heck of a pitcher but I do not think he will be an effective pitcher in 2008 if he pitches at all and imo he wouldn't sign with the Cubs (for 2009 and beyond) again if he did regain a partial amount of his old form.