Agreed.
Adding him to our 40 would have just given us more time to make a trade.
I also wonder about how much we really value guts like Brasier, Ort, Mills, Dalbec, Duran and maybe even Murphy. If we really did/do not want to lose them by 40 man roster attrition, maybe we should have traded someone in the next higher tier for a non 40 man prospect to make roster room:
Murphy or Walter and kept Ward or add Sheriff
Refsnyder or Abreu (add Tapia)
Crawford or Winckowski (Ward/Sheriff)
Wong (add Alfaro), although it's good to have 3 catchers on the 40.