[UCGL_Guy]

5 minute periods - teams would be forced to manage their power and would give more total field time with less traveling between. Maybe include a 1 minute halftime period to make adjustments (no battery change), change partners - during the second half you are partnered with the other alliances bots so you make a new parternership.
Autonomous selection of alliance partners - robots can be programmed to activate another machine to be on their alliance and vice versa - with default selections. this could be done with light colors or shapes or "playing tag"
Weird yes but I like weird