That's basically my opinion. Though I would say Castro was going to make this team regardless, I think the plan was for Sanchez to be the fifth starter all along. I imagine AA wanted to keep Norris down for control reasons, but Norris may force his hand with Stroman down. My money would still be that Norris starts in the minors, but since his problem is inning limits I don't know how many AA would want to waste in AAA. If he doesn't stay down long enough to gain a year of control, Those innings are effectively wasted.