If you have people that get into the character put them all on one team. If you have people that just know technical stuff, put them on one team. You build your teams around witnesses. Building them around attorney parts is stupid. Like personalities will flow better. If you have a ridiculous francis, you need a ridiculous montana, and then a ridiculous dritz.
Here at Morris, we've never had the need to worry about who's stacked on which team, so I have little experience on this matter, but regardless, everything above seems completely backwards. A crazy Montana will come off as really weird -- it would
not flow with a team of witnesses who specialize only in character. Instead, it's important to have a balance. Let the crazy people play crazy witnesses, and let the technical people play technical witnesses. It's really that simple, and it shouldn't cause much trouble with your theme.
For an example, look to the 2006 championship round. Virginia played a super quirky human resources manager, a passionate liquor store owner, and a very professional and technical investigative auditor. It worked beautifully.