Late to this thread, but 14 pitchers is the maximum for teams from yesterday until May 29, at which point the maximum drops to 13. So if there are no more injuries, Gray would have to displace another pitcher.
The reference to players being recalled and not getting a chance refers to Drew Maggi, a career minor leaguer, recalled for three days because Simmons wasn't allowed to go to Canada. Not the same thing as Miranda, a top 100 MLB prospect.
Sano will be out awhile, perhaps a long while, so Miranda should get a real good shot to see if he's ready for the show. I am pretty sure neither Arraez or Miranda will get any outfield time. I'm hoping, with Miranda's recall, that neither Urshela or Sanchez will have to play first base.
Urshela's numbers looked very good when the Twins started their road trip. Unfortunately, he was 0 for Tampa Bay. Numbers bounce up and down this early in the season, ask Kepler or Correa. Worst case scenario, is that Urshela is a valuable utility guy, best case is that he hits lefties well and is the semi-regular third baseman.
I've mentioned this in other threads, the thing that stands out to me is that Baldelli and his staff still have legitimate major league players (or in Miranda's case a legitimate prospect) to choose from. He's not choosing the lesser of two evils to DH or having to decide which sub-Mendoza line infielder to play. This is with three position players on the Injured List. The depth is depleted in the outfield and first base, but these are still major leaguers to choose from.