That's the problem. You are removing variables, and you can't do that in the real world. Yes, if money, age and arm wear wasn't an issue, I'd take Arrieta. But then, if those weren't issues, he would have resigned with the Cubs long ago. Fact is, they are, and Cobb has him beat in all those variables. He is going to be cheaper, he is nearly 2 years younger, and he doesn't have near the milage on his arm. I mean, what are you trying to get at? In a vacuum, Arrieta is the better pitcher. But life doesn't operate in a vacuum. Arrietta being 1 year older doesn't really seem to move the needle for that variable. Cobb having 2 TJ also seems to push it towards Arrietta with how much he's pitched over the years. Also, Arrietta is a better overall pitcher when he's on. The only thing going for Cobb in this scenario is the money, and that he could get his change up back. Arrieta is 19 months older. So yes, that does make a difference. Cobb has had 2 Tj surgeries? I thought it was only one. Do you have a source that indicates he's had 2? I agree that Arrieta is better when "on". Dude, I am not anti Arrieta. I like him a lot. He's had a ton of success, and I think he's got a HUGE chip on his shoulder, especially against the Cubs. Depending on what he ends up signing for, he may very well have the better value. I just think Cobb is a solid choice as well.