While I think that is mostly true. I have noticed some slight differences in my Roster. For instance, Mitch Moreland was my 1st baseman for the Red Sox with my first two playthroughs on MtO, but now he isn't on my team (he's on the Padres warming their bench in fact). So I think the Rosters do update to some extent.
O
ookamikazechan
@ookamikazechan