Kind of an open question but I’ll play off of this post.
As far as rule 5 and Cs go, it would seem to me that it’s tough to roster a C via rule 5 unless he’s absolutely ready for playing time. And, sure, there could be some position player shuffling with the other roster spots from time to time cover other position players if a rule 5 guy is a 3rd C / DH / 1B on an active roster. I think the Marlins took Rob Brantley as a rule 5 pick. But it doesn’t seem like grabbing a C in the rule 5 ever happens. I’m probably wrong and it’ll be pointed in a few moments.