Carlson looks like a keeper, but whether he will be somebody the org wants to keep once they have to pay him is question mark. ie Wong, Lynn (1st rounders somewhere else).
Flaherty was blossoming this year before he went on the IL. We will see what happens when he returns. He was 23-22 before he reeled off the win streak. He may well not be a long term Cardinal anyway.
Woodford has been an OK role player so far. Future as a rotation regular uncertain.
If we are happy with that, lets keep doing what we have been doing.