Looking For Sports Talk Baseball and Other Sports Game Roster Editors

[biffwebster]

I am looking to edit rosters on my Sports Talk Baseball Sega Genesis rom but am a complete novice. I see games like Tecmo Bowl and Madden easy to use game specific editors, so I assume I would need a hex editor for a less popular game like this. It'd be ideal if there is already an easier to use editor but I can follow instructions well and don't mind starting from scratch if someone could point me in the right direction.