[Tetraman]

I agree with the FiM vs. MAR match, not so much about an Einstein rematch.

Which makes me think of a "auto alliance" option. If you are the alliance captain, and were an alliance captain at a district/regional/championship/division, you can choose to invite both original robots (in the case of backups) that your alliance selected as your first selection. Both teams must still accept, but it gives you the option of automatically setting your alliance to an alliance you had at a previous event that year.