If Smith was running the show, Butera would be up here as he gave Gardy what ever he wanted.
With Ryan in charge, Gardy would have to make a very compelling case to convince Ryan to bring up Butera. Ryan is the one who has final say on the roster. Gardy can make requests, but Ryan makes the calls.
That being said, I believe that Hughes was the "emergency" catcher. Who has that role now?