in mfn-19 it shows me as having a 6-13 record but i picked up Atlanta in week 12 of last season and we are in week 3 now, so including pre-season games i've only had 12 games total and am 6-6
if it doesn't include pre-season then i have 8 games and am at 4-4
Even if you add a team late, it takes the full season record in to account. It's controversial and known, so people don't put too much weight in to that record.