B would be a disaster.
I'd make a gamble and if I can't get a 1 or 2 caliber pitcher at the trade deadline without saying good-bye to Betts or Swihart, I'd hold the line. I'd only say good-bye if I am getting someone who is "Bumgarner." But I don't think that caliber will be available.
Build a core of young kids. Then overpay to get a huge starter or two.