Goodwin has a .164 iso slugging for a center fielder (career; .142 this year) and is 22 years old in AA. Certainly K's a lot, but is a 5 tool center fielder.
They certainly need some hitting, but the only spots that aren't taken long term are 1B and CF. THe other players in place should be long term Ramos, Rendon, Desmond, Zimerman, Harper, Werth
Internal options for 1B-3B/CF are Goodwin, Skole, Souza