If they spend heavy it should be on Price. He is a proven product and turns the rotation into a force.
Cahil is another filler. Richard used to be good also. So was Jackson and others of that ilk.
They are all poor man inning fillers.
Losing team answers
Richards was a fair to middling BOR guy with the Padres and White Sox for a few years. He fell off a bit and at 31 that makes you pretty unattractive. Still he filled a need when they had one. As far as Cahill, he's a big strong kid who had shown some signs of being a good starting pitcher in Oakland and Arizona and he's 27 years old. Not unlike Jacob Turner this is exactly the kind of guy they should be looking at. Yes, they have to spend money or trade for other TOR types but you have to continue to mine the waiver wire or anywhere else you can find value. Going into a season a team needs to have between 7-9 guys either on the MLB roster or in the minors that can start games. Without the top level prospects the Cubs have to find other ways to fill those spots. they will have to do this for a year or two until some of the lower levels guys are getting close to ready.
This is a completely separate issue from signing or trading for TOR talent. I do think they should go hard after Price, Greinke and Cueto in that order. I would also like them to go back and look at the arms they explored trades for at the deadline. They should see if they make a deal for Tyson Ross, Carlos Carrasco or Julio Teheran or maybe another guy like that. I'd like to see them upgrade from Hammel and Hendricks for 2016. I think Hammel is serviceable and Hendricks might be as good as a #3 someday but next year has to be the push. I wouldn't mine trading either one or both of them. I think it's inevitable that they'll lose Arrieta after 2017 to FA, especially if they sign Price to a $200-$230 million deal. If Arietta continues like this he'll get every bit of that himself in two years. Bring in a Ross or a Carrasco and you mitigate that risk.
Again these are two issues. Who they sign and how they put together a top of the rotation and what kind of depth they build for contingencies for the back end. If you sign Price and trade for Ross you'd be looking at Price, Arrieta, Lester, Ross and Hendricks or Hammel. Behind that you might have Pierce Johnson in AAA and maybe they stretch out Carl Edwards. They'll need two more guys. I'm all for looking in every avenue possible.