Rodriguez is just average in AAA, he has show nothing to be called starter; bring him up for a look-see, depends on how he would do in Spring Training.
Goldschmidt is a glass that is either half full or half empty depending on one's prejudices.
Clemens had a good glove at First which does not make Goldschmidt a true need at First.
Martin was fairly good at Second; Keaschall , his glove work too closely resembles Julien - so far.
Short Stop is the BIG need; Lee is not good enough, while Lewis is , even improved, a midiocre Third baseman; Lee was good there last year.