No need to buy a back up lol we can use our youth to fill in, only buy for a clear upgrade and starters for our team. For CMF for ex we still have Gallagher and RLC so no need to buy for this position yet unless they flopped. A new CB and GK can wait for an another year if we're worried about FFP, but other positions like AM, LB, RW, and ST must be done in this summer.