Is is possible...
 

to have one save with all of the histroic teams renamed? I see post like, 93 Lions renamed followed byt 00 Ravens roster. Do all these have to be seprate roster saves or can they all tie into one?

Re: Is is possible...
 

They are separate files. If you've ever exported or created a team, they are saved like that, individual files per team.

What you're speaking of, and something Madden should do in the future, is what NCAA does - one historical rosters file, with all the teams in it. I wish it was like that.