Simmons was brought in to provide SS defense, he has done that. None of the Polanco, Arraez or Gordon trio would be an upgrade.
Rooker hasn’t been very good or all that healthy at AAA, he does not look to be an upgrade to anyone on the current active roster at this time.
Looks like Ober and Jax will be first in line to get major league looks. I like these moves, but don’t think Happ or Shoemaker are, or should be, done getting starts.