If we sign a guy like Nimmo, I think we turn down Pham's $6M option and pay him $1.5M, assumi ng he turns down the mutual option, too. The difference is $4.5M, and he would not be a bad 5th OF'er as I figure ref might be the #4. One other option is to use Pham or Ref as a DH or platoon DH, but I agree, we don't need ref and Pham.
If we don't add an OF'er, I'd keep Pham:
LF: Dugo & Pham
CF: Kike
RF: Dugo & Ref