we don't have the money to spend to get a rotation like those you've mentioned. it'd be great but it's out of reach.
i'd rather see one bonfafide stud with four very solid mid-rotation types and a great bullpen. i wouldn't touch darvish - he's been pretty ineffective with the dodgers and he's had a significant injury. i'd lobby hard for arrieta. sign him, keep upton and phillips, and add where else is needed, and the remaining trout years won't be wasted.
it's like going to thanksgiving at, well, at my house, wondering what kind of tofurkey i'm going to serve you when what you really want is a nice big meaty turkey leg.